L13 : Application of Henry law - Solutions, Chemistry, Class 12 Video Lecture

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so let's seize an application of henry's
lon we have seen the solubility of gas a
liquid and it's the application of
hindering law so here a lot on what
Henry law straight away told that the
solubility of gas a liquid in liquid
indirectly proportion do treasure
correct so there of a magician for
haneda the first as I told the coca-cola
bottle or the soda bottle so to increase
the solubility of carbon dioxide in this
soda bottle what we do is when the pack
the soft drinks it is packed at a high
pressure this Bank
at high pressure when at high pressure
what happened this the carbon exit is
dissolved in this but in the moment you
open it you see the bubbles that is one
application the next is the scuba divers
so this I'll explain later the scuba
divers they actually died even
understand the whole ocean they dive at
a very very low height very deep I mean
they go very deep inside
ocean and seas so they go at a very
highly pressure actually explain why if
you see this scene this is where we stay
most of the time this is the place where
we stayed right this is the normal sea
level line level if you climb at the
mountain you see that the pressure is
low why and if you go deep inside the
ocean you see you have high pressure
you think whiteness see the pressure is
think of this you this is you right on
this if I put a 1 kg of mass you will
feel some pressure if instead of one
gives you L put some 20 kg mass will
feel more pressure well put 100 kg of
iron will create voltage same thing it
is we who are here correct the pressure
we feel here is because of all this mass
over here the moment we are here the
pressure we feel on the head is you this
mass which is less if we are here we
have here the pressure we should feel on
our handle because of this mass plus
this mass so obviously when you go down
you feel more pressure because this
extra water is giving you more pressure
if you are here you feel less pressure
why because the hair more air was giving
you pressure here less air correct so
with that you understand the movement
you go up you climb the hills you feel
low pressure and this you go deep down
the ocean you find high pressure zone
I'll explain the scuba diver how it
works but centralized helpful there also
the third was the mountainous at a high
altitude the mountains the pressure is
less why
as I told just the partial pressure of
oxygen is less okay now with this there
is a low concentration of oxygen in the
blood how I told the solubility of a gas
a liquid is pushed exactly reversion to
the partial pressure of that gaps the
partial pressure of oxygen is pressures
is less air correct because only this
one option is creating this partial
pressure the pressure is less the
solubility will go down
so that means solubility of blood in
this on a body because blood is what
blood is what liquid right in this gas
is my oxygen the solubility of oxygen in
the blood will decrease if the
solubility of oxygen in the blood will
decrease the lower amount of oxygen the
blood will make the climber week and
this climber will not be able to think
properly and he'll develop a symptom
called a nausea anxiety announcer all
right let me not discuss the scuba diver
thing as I've already told the pressure
at which these scuba divers work is high
pressure this is high pressure high
pressure so this is high pressure zone
and this is the suppose at the top of
this see here we're getting relatively
low pressure here you get normal at one
sec pressure right when he comes out
this is the bottom of the ocean because
ocean is very deep right is bottom of
ocean ocean and this is my area of air
this is where we leave actually yeah so
here we have very high pressure normally
when the scuba driver comes down when
the scuba diver comes down you see the
pressure is very high since the pressure
is very high that dissolved oxygen
nitrogen gas is very high correct this
blood vessels if you see the vessels in
the blood dissolve more oxygen and
nitrogen more oxygen or nitrogen and
more other gases also I would more gases
will be dissolved in the blood correct
I'll show you once again the square
driver comes down and because of high
pressure here
more and more nitrogen oxygen or other
gases to get dissolved in the blood and
that is not good that is not good
because more and more nitrogen in the
blood is not good that is fasting right
because the moment you have nitrogen is
what nitrogen is toxic so more toxic
thing in the blood does not go to this
first thing right so I'll write here
more nitrogen is blood at bottom of
ocean is toxic right at high pressure at
I play high it right here is nothing but
the bottom of the moment he comes down
the moment discover driver comes down
the high pressure it goes down the
solubility of gas that is solubility of
nitrogen oxygen all this increase in the
blood in this nitrogen is toxic and more
nitrogen or more toxic gases is all in
the blood of the human that is not good
second thing is with the scuba driver
goes back goes back it comes back what
happens is the dissolved nitrogen tries
to come some in the form in powers which
me once again it tries to come back the
dissolved gases tries to escape in the
forms of Baba so these bubbles these
bubbles will block capillaries
capillaries and will create a medical
emergency and this is called bends say
disease or medical amazing it is very
painful a person might die also
it was life-threatening actually okay so
let me explain this once again scuba
diver goes down the ocean you get a high
pressure more nitrogen gas and more
other cab oh forget the salt it is not
good the moment this guy comes up these
gases comes out with bubbles and these
bubbles
block the capillaries of human and that
is also not good that gives a medical
critical situation called it is
life-threatening so to avoid this what
we do is to avoid this blocks to avoid
the bubbles blocking the capillaries and
also high amount of nitrogen toxic
pathogen what they do is they go with a
tank this is a tank right and this air
tank has air that is filled with helium
nitrogen and oxygen so helium is almost
eleven point seven percent nitrogen is
enormous way up to six point two percent
in oxygen is 32 percent normal percent
which we have in a land hey because
human is used to this kind of percentage
that's how the henry's law is helping
scuba divers to lead a happy life
correct now let's talk about equity
quality so as I have told that the
temperature increase will decrease the
solubility of gas in liquid in this case
oxygen in but and you see the boiling
water oxygen gas comes up so if the due
to global warming you know global
warming the temperature of the earth is
increasing the temperature of this
seawater is also equally it's in the
temperature the seawater is increasing
more and more oxygen comes out of this
and Compton's air now with this the
seawater is deprived of oxygen if the
sea water is the driver oxygen the
aquatic life inside the sea water is
deprived off here and it does not good
for them so it is actually having an
adverse impact on equity life
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