NEET Exam > NEET Videos > Effect of Temperature, Inert Gas Addition, Catalyst
Effect of Temperature, Inert Gas Addition, Catalyst Video Lecture - NEET
FAQs on Effect of Temperature, Inert Gas Addition, Catalyst Video Lecture - NEET
| 1. How does temperature affect a chemical reaction? |  |
Ans. Temperature affects a chemical reaction by influencing the rate of reaction. Higher temperatures generally increase the rate of reaction as the kinetic energy of the reactant molecules increases. This leads to more frequent and energetic collisions, resulting in a faster reaction. Conversely, lower temperatures decrease the rate of reaction as the kinetic energy decreases, reducing the number of effective collisions.
| 2. What is the role of inert gas addition in a chemical reaction? | |
Ans. Inert gas addition in a chemical reaction serves to maintain a constant pressure and volume within the reaction system. Inert gases, such as nitrogen or argon, do not participate in the reaction itself and do not affect the equilibrium or rate of reaction. They simply occupy space and ensure that the pressure remains stable during the course of the reaction.
| 3. How does the presence of a catalyst influence a chemical reaction? | |
Ans. A catalyst is a substance that increases the rate of a chemical reaction by providing an alternative reaction pathway with a lower activation energy. It does not undergo any permanent changes during the reaction and can be recycled. The presence of a catalyst allows the reaction to occur at a faster rate, facilitating the formation of products without being consumed itself.
| 4. What are the effects of increasing the temperature in a catalyzed reaction? | |
Ans. Increasing the temperature in a catalyzed reaction can further enhance the rate of reaction. Since a catalyst lowers the activation energy, even more reactant molecules possess sufficient energy to overcome the lower energy barrier at higher temperatures. This leads to an increased collision frequency and more successful collisions, resulting in a higher reaction rate.
| 5. Can temperature and catalyst be used interchangeably to increase the rate of a chemical reaction? | |
Ans. No, temperature and catalyst cannot be used interchangeably to increase the rate of a chemical reaction. While both temperature and catalyst can enhance the rate, they operate through different mechanisms. Temperature affects the kinetic energy of the reactant molecules, increasing the number of effective collisions. On the other hand, a catalyst provides an alternative reaction pathway with a lower activation energy, facilitating the reaction without being consumed itself. Therefore, a combination of optimal temperature and the appropriate catalyst can result in the highest reaction rate.
Text Transcript from Video
hello friends this video on equilibrium
part 21 is brought to you by example
calm no more free from exam if you're
watching the video please make sure that
you have watched all the previous parts
let's talk about the new effect where we
have effect of energy as condition so
effect of inert gas addition if the
energy is not reacting with the system
then they are two possible if the volume
is constant there should not be any
impact because the volume is constant if
you see there is no impact if the end of
the pressure increases the partial
pressure in women see proportionally but
if the pressure is constant the volume
is increasing in that case if the volume
increase is the same concept if the
volume increased the reaction moves to
the side width which has more number of
moles if the volume decreased reaction
move to the side which has less than
nervous so you have n2 this example we
have it simple we have two moles here we
have four moles here if it is constant
pressure the volume is increased it will
move in this direction with more number
and also the second case is if this
inner gas react with the reactant or the
product now in that case this scenario
is nothing but the scenario of change of
concentration so then in that case we
can apply the formulas of the logically
we have learnt just few slides before
where we have told that to increase the
degrees of reactants or products for the
system in the hey let's talk about the
effect of temperature change so if you
change the tell mom we have been
changing QC but as temperature change
impacts KC they told then you have to
give the value of KC you should give the
reaction plus temperature change also
temperature odds right so KC is defined
at a given temperature to change
temperature the VC is change so when you
change the temperature the equilibrium
concentration change and thus the
equilibrium moves accordingly and please
note once again that QC is not change in
this case only chases change so where's
our equilibrium moves in case of
temperature change so it depends on the
reaction but is exothermic reaction
is negative this equilibrium constant
decreases as temperature use or a
endothermic reaction the equilibrium
constant increases if he is a
temperature see logically also it's
picture for example I have reaction 8
plus V gives C plus D plus he let's
suppose is an exothermic reaction now
since it is already given heat if I am
increasing the temperature bottle apnea
since this part I had heat so what will
happen the reaction will move in such
direction that the temperature will
decrease I am increasing the temperature
reaction will move in such a fashion
that the temperature will decrease
degrees range temperature the reaction
has to go in this direction right
that is the case the KC has two days
correct because Casey's increasing that
means you are saying that reaction going
both forward if KC is decreasing you are
saying that reaction is going for
backward similarly for an endothermic
reaction you have a V you give a heat
then you get C plus D so in that case if
you increase temperature system will
move in this direction to reduce the
stress of the heat so that the KC will
correct let's take an experiment on the
temperature change so you must have seen
in the lab no.2 and n2o4 so I know do is
dark and n2o4 is light right and this is
how it behaves this no.2 at low
temperature moves to AH this guy you can
see here and this guy n2 who goes back
to no.2 and heightened
this is how the reaction happens right
so n2o4 you give high temperature it
becomes no.2 UNL do you give low
temperature it becomes India see this is
what happens as per temperature so for
this what they have done in the lab in
the beaker we have water at room
temperature this is my seeds test tube
which has both an o2 and n2 so I have n
2 o 4 and no.2 both are in equilibrium
in this test tube this matters to me is
my test tube
alright ladies this is my test tube
sealed test tube which has n 2 over also
MN of doors right now
there is room temperature so they have
color something like this the moment I
take this to a hot water is hot water
now when I take the hardware what
happens is in high temperature it moves
towards and to side so n2o4 in this from
there only converts into no.2 and no2 is
what dark in color so you see this
becomes darker similarly the same the
room temperature one one test tube I
take to get here another two one take it
here in this test you I keep in the ice
very cold so cold what happens and no to
whatever he was here becomes n 2 O 4 and
n 2 4 is become is light the color of
this becomes lightly right so you had
two test tubes which had n to n n 2 O 4
mixture in the equilibrium the moment
you slip that test tube toward increase
the temperature that becomes darker
because no.2 be small and if you cool
that
name system it becomes light because no
temperature and move response though we
can say that the change in temperature
impacts the equally last one experiment
to clue this that the change in
temperature also back the okay this we
actually if you want again item do this
into whole plus little heat this thus
anymore if I have mission if I have the
moment I provide more heat you get more
energy use this red you decrease the
temperature equipped in this direction
you gain more into focus time to them
alright let's take one example what will
happen to equilibrium in the temperature
of the system is decreased so if you see
in this case Delta H is positive that is
this is endothermic reaction alright so
you can rewrite this equation as to just
to make my life simple this plus heat is
required to give and correct so now if
you increase the temperature what will
happen the reaction will regeneration
but now it's a the temperature is
decreased so you will decrease the
temperature they add signalization to
counter effect the each culture to move
in the backward direction let's
understand the effect of catalyst see
catalyst what happens if we increase the
rate of reaction and how it increase the
rate of reaction because it forms an
intermediate product which which
increases the rate of reaction and again
it really gives the product back to the
system in there is a logic behind that
so it increase the rate of the rate of
reaction by increasing the rate of
forward and backward reaction
Boutique Punisher but it won't impact
they can clear it will not have any
impact and if you see it is it will do
nothing but increase the rate of
reaction chemical reaction by providing
a new pathway to reach that for example
I'll tell you number you reach from
eight a point to people that oppose
eight give me the normal route do you
have is this rule and this is 10 meter
okay and you were your speed is 10 meter
per minute
what that meter per second 10 winter
person how much time you would take to
reach from A to B obviously one second
now what does catalyst will do instead
of giving that would catalyst believe in
this rule and this rule is one meter so
if you have speed its em into per second
this guy will take once again and this
guy will take point one second Mishra is
faster all this disease so catalyst will
do nothing but will give you alternate
wait in reach from point A to point B
very fast but also give a route to reach
from point B to a also very fast so both
forward and backward reaction has
increased equally there is no change in
the a chameleon right but note that if
the K is very small even if we are a lot
of catalyst pone increase the reaction
that much case should have some value
there only cactus will help you some
recap on this please pay attention here
so we have some different kind of stress
we had was something like increase the
reactants increase the product
concentration increase the temperature
increase the decrease temperature
increased pressure decrease pressure add
catalyst and inert gas at constant
volume
add in a gas concentration all this
stress we learn so let us talk about the
direction we clean so increase the
concentration of reactant it moves in
the forward direction we have seen
because
we have a plus B gives you plus D so if
you increase the reactant it moves the
power direction right if you increase
the product it moved in the backward
direction
alright you increase the temperature it
is an endothermic reaction it moves
towards moving direction to decrease the
temperature it moves towards a thermic
reaction this thing we explained you
increase the pressure it moves towards
lesser number of moles but also we
explain you decrease the pressure it
moves towards one number of holes
addition of grat let's move a fact you
add inert gas at constant volume
constant volume no effect constant
pressure there is effect if you towards
larger number of molecules if the volume
there is increasing right now let's talk
about KP and k kc + PP change also we'll
see this impact equal PC so increase the
concentration
KP and KC will not have any change
decrease the concentration of product no
change increase temperature KP will have
change
please note KP and KC will have seen you
only when you change temperature you
increase pressure decrease pressure add
catalyst where our dinner gas the KP n
kc value will not change KP and K Z
value will change early when you play
with temperature but thank you visit
exam viacom to watch free educational
videos try free online tests get the
best quality study materials study from
the best tutors and mentors and much
more thanks on screen
part 21 is brought to you by example
calm no more free from exam if you're
watching the video please make sure that
you have watched all the previous parts
let's talk about the new effect where we
have effect of energy as condition so
effect of inert gas addition if the
energy is not reacting with the system
then they are two possible if the volume
is constant there should not be any
impact because the volume is constant if
you see there is no impact if the end of
the pressure increases the partial
pressure in women see proportionally but
if the pressure is constant the volume
is increasing in that case if the volume
increase is the same concept if the
volume increased the reaction moves to
the side width which has more number of
moles if the volume decreased reaction
move to the side which has less than
nervous so you have n2 this example we
have it simple we have two moles here we
have four moles here if it is constant
pressure the volume is increased it will
move in this direction with more number
and also the second case is if this
inner gas react with the reactant or the
product now in that case this scenario
is nothing but the scenario of change of
concentration so then in that case we
can apply the formulas of the logically
we have learnt just few slides before
where we have told that to increase the
degrees of reactants or products for the
system in the hey let's talk about the
effect of temperature change so if you
change the tell mom we have been
changing QC but as temperature change
impacts KC they told then you have to
give the value of KC you should give the
reaction plus temperature change also
temperature odds right so KC is defined
at a given temperature to change
temperature the VC is change so when you
change the temperature the equilibrium
concentration change and thus the
equilibrium moves accordingly and please
note once again that QC is not change in
this case only chases change so where's
our equilibrium moves in case of
temperature change so it depends on the
reaction but is exothermic reaction
is negative this equilibrium constant
decreases as temperature use or a
endothermic reaction the equilibrium
constant increases if he is a
temperature see logically also it's
picture for example I have reaction 8
plus V gives C plus D plus he let's
suppose is an exothermic reaction now
since it is already given heat if I am
increasing the temperature bottle apnea
since this part I had heat so what will
happen the reaction will move in such
direction that the temperature will
decrease I am increasing the temperature
reaction will move in such a fashion
that the temperature will decrease
degrees range temperature the reaction
has to go in this direction right
that is the case the KC has two days
correct because Casey's increasing that
means you are saying that reaction going
both forward if KC is decreasing you are
saying that reaction is going for
backward similarly for an endothermic
reaction you have a V you give a heat
then you get C plus D so in that case if
you increase temperature system will
move in this direction to reduce the
stress of the heat so that the KC will
correct let's take an experiment on the
temperature change so you must have seen
in the lab no.2 and n2o4 so I know do is
dark and n2o4 is light right and this is
how it behaves this no.2 at low
temperature moves to AH this guy you can
see here and this guy n2 who goes back
to no.2 and heightened
this is how the reaction happens right
so n2o4 you give high temperature it
becomes no.2 UNL do you give low
temperature it becomes India see this is
what happens as per temperature so for
this what they have done in the lab in
the beaker we have water at room
temperature this is my seeds test tube
which has both an o2 and n2 so I have n
2 o 4 and no.2 both are in equilibrium
in this test tube this matters to me is
my test tube
alright ladies this is my test tube
sealed test tube which has n 2 over also
MN of doors right now
there is room temperature so they have
color something like this the moment I
take this to a hot water is hot water
now when I take the hardware what
happens is in high temperature it moves
towards and to side so n2o4 in this from
there only converts into no.2 and no2 is
what dark in color so you see this
becomes darker similarly the same the
room temperature one one test tube I
take to get here another two one take it
here in this test you I keep in the ice
very cold so cold what happens and no to
whatever he was here becomes n 2 O 4 and
n 2 4 is become is light the color of
this becomes lightly right so you had
two test tubes which had n to n n 2 O 4
mixture in the equilibrium the moment
you slip that test tube toward increase
the temperature that becomes darker
because no.2 be small and if you cool
that
name system it becomes light because no
temperature and move response though we
can say that the change in temperature
impacts the equally last one experiment
to clue this that the change in
temperature also back the okay this we
actually if you want again item do this
into whole plus little heat this thus
anymore if I have mission if I have the
moment I provide more heat you get more
energy use this red you decrease the
temperature equipped in this direction
you gain more into focus time to them
alright let's take one example what will
happen to equilibrium in the temperature
of the system is decreased so if you see
in this case Delta H is positive that is
this is endothermic reaction alright so
you can rewrite this equation as to just
to make my life simple this plus heat is
required to give and correct so now if
you increase the temperature what will
happen the reaction will regeneration
but now it's a the temperature is
decreased so you will decrease the
temperature they add signalization to
counter effect the each culture to move
in the backward direction let's
understand the effect of catalyst see
catalyst what happens if we increase the
rate of reaction and how it increase the
rate of reaction because it forms an
intermediate product which which
increases the rate of reaction and again
it really gives the product back to the
system in there is a logic behind that
so it increase the rate of the rate of
reaction by increasing the rate of
forward and backward reaction
Boutique Punisher but it won't impact
they can clear it will not have any
impact and if you see it is it will do
nothing but increase the rate of
reaction chemical reaction by providing
a new pathway to reach that for example
I'll tell you number you reach from
eight a point to people that oppose
eight give me the normal route do you
have is this rule and this is 10 meter
okay and you were your speed is 10 meter
per minute
what that meter per second 10 winter
person how much time you would take to
reach from A to B obviously one second
now what does catalyst will do instead
of giving that would catalyst believe in
this rule and this rule is one meter so
if you have speed its em into per second
this guy will take once again and this
guy will take point one second Mishra is
faster all this disease so catalyst will
do nothing but will give you alternate
wait in reach from point A to point B
very fast but also give a route to reach
from point B to a also very fast so both
forward and backward reaction has
increased equally there is no change in
the a chameleon right but note that if
the K is very small even if we are a lot
of catalyst pone increase the reaction
that much case should have some value
there only cactus will help you some
recap on this please pay attention here
so we have some different kind of stress
we had was something like increase the
reactants increase the product
concentration increase the temperature
increase the decrease temperature
increased pressure decrease pressure add
catalyst and inert gas at constant
volume
add in a gas concentration all this
stress we learn so let us talk about the
direction we clean so increase the
concentration of reactant it moves in
the forward direction we have seen
because
we have a plus B gives you plus D so if
you increase the reactant it moves the
power direction right if you increase
the product it moved in the backward
direction
alright you increase the temperature it
is an endothermic reaction it moves
towards moving direction to decrease the
temperature it moves towards a thermic
reaction this thing we explained you
increase the pressure it moves towards
lesser number of moles but also we
explain you decrease the pressure it
moves towards one number of holes
addition of grat let's move a fact you
add inert gas at constant volume
constant volume no effect constant
pressure there is effect if you towards
larger number of molecules if the volume
there is increasing right now let's talk
about KP and k kc + PP change also we'll
see this impact equal PC so increase the
concentration
KP and KC will not have any change
decrease the concentration of product no
change increase temperature KP will have
change
please note KP and KC will have seen you
only when you change temperature you
increase pressure decrease pressure add
catalyst where our dinner gas the KP n
kc value will not change KP and K Z
value will change early when you play
with temperature but thank you visit
exam viacom to watch free educational
videos try free online tests get the
best quality study materials study from
the best tutors and mentors and much
more thanks on screen
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Nov 15, 2024 Last updated |
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