Class 11 Exam > Class 11 Videos > Zeroth law (Part - 4) - Thermodynamics, Class 11
Zeroth law (Part - 4) - Thermodynamics, Class 11 Video Lecture
FAQs on Zeroth law (Part - 4) - Thermodynamics, Class 11 Video Lecture
| 1. What is the zeroth law of thermodynamics? |  |
Ans. The zeroth law of thermodynamics states that if two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other. This law establishes the concept of temperature and allows for the measurement of temperature using thermal equilibrium.
| 2. How does the zeroth law relate to the concept of temperature? | |
Ans. The zeroth law of thermodynamics is directly related to the concept of temperature. It states that if two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other. This means that when two objects have the same temperature, there is no net heat transfer between them when they come into contact. Temperature is a measure of the average kinetic energy of the particles in a system, and the zeroth law allows us to compare and quantify temperature differences.
| 3. What is thermal equilibrium and why is it important in the zeroth law of thermodynamics? | |
Ans. Thermal equilibrium refers to a state where two objects or systems are at the same temperature and there is no net heat transfer between them when they come into contact. It is important in the zeroth law of thermodynamics because it serves as the basis for defining and comparing temperatures. The zeroth law states that if two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other. By establishing thermal equilibrium, we can determine whether systems have the same temperature or not.
| 4. How is the zeroth law of thermodynamics applied in everyday life? | |
Ans. The zeroth law of thermodynamics is applied in everyday life in various ways. One common application is the use of thermometers to measure temperature. Thermometers work based on the principle of thermal equilibrium, allowing us to compare the temperature of different objects or environments. Another application is in the design and operation of heating and cooling systems. The zeroth law helps ensure that heat transfer occurs efficiently and that temperature control is achieved. Additionally, the zeroth law is essential in cooking, where temperature measurements and control are crucial for preparing food properly.
| 5. Can the zeroth law of thermodynamics be violated? | |
Ans. No, the zeroth law of thermodynamics cannot be violated. It is a fundamental principle that holds true for all systems. If two systems are in thermal equilibrium with a third system, they will be in thermal equilibrium with each other. This law is based on the empirical observation that heat flows from hot to cold until thermal equilibrium is reached. Any violation of the zeroth law would contradict our understanding of temperature and heat transfer.
Text Transcript from Video
hello friends this video on
thermodynamics part 4 is brought to you
by exam feel calm no more fear from exam
please make sure that you have washed
all the parts till 3 before going ahead
with part 4 so what the zeroth law of
thermodynamics zeroth law states that
two systems in thermal equilibrium with
a third system separately are in thermal
equilibrium with each other so now you
understand why I explained to you what
is thermal equilibrium so now you know
what is thermal equilibrium right two
systems will be in thermal equilibrium
if both of them are at the same
temperature right
so zero through states that if I have
two systems which are in thermal
equilibrium with a third system for
example if I have two systems a and B
such that a is in thermal equilibrium
with a third system let us say C and B
is also in thermal equilibrium with C
that means a and B are in thermal
equilibrium with each other so this was
the statement of 0 'clock let us
understand it more carefully let us
suppose I have two systems a and B let
us suppose a and B as two systems which
are not in thermal equilibrium that
means these two systems are at some
different temperature now let us suppose
there is another system C with which
these systems are in thermal equilibrium
that is let us suppose a and C are in
thermal equilibrium again B and C are in
thermal equilibrium but a and B are not
in thermal equilibrium what does that
means that means that a and B are also
in thermal equilibrium so or do we
conclude that if a is in thermal
equilibrium with C a is in thermal
equilibrium with C D is also in thermal
equilibrium with C
means that a is in thermal equilibrium
with B now the most significance or what
is the significance of this zero clock
the significance is that zeroth law
suggested that there should be a
physical quantity which should have the
same value for systems in thermal
equilibrium till now I already define
what is thermal equilibrium to you right
but it it originated in this way zeroth
law came up and zeroth law told this
fact that if two systems are in thermal
equilibrium with a third system that
means that these two systems are in
thermal equilibrium with each other so
from 0 to ah it was such a state that
there should be a physical quantity
which should have the same value when
two systems are in thermal equilibrium
so this physical quantity was defined as
temperature so temperature is the
quantity which defines or which
determines whether or not the system is
in thermal equilibrium with a
neighboring system so from there we
started defining thermal equilibrium as
two systems at same temperature is in
thermal equilibrium with each other so
basically the temperature I mean zeroth
law gave birth to the significance of
temperature in thermal equilibrium thank
you please visit exam few calm 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 thank you once
again
thermodynamics part 4 is brought to you
by exam feel calm no more fear from exam
please make sure that you have washed
all the parts till 3 before going ahead
with part 4 so what the zeroth law of
thermodynamics zeroth law states that
two systems in thermal equilibrium with
a third system separately are in thermal
equilibrium with each other so now you
understand why I explained to you what
is thermal equilibrium so now you know
what is thermal equilibrium right two
systems will be in thermal equilibrium
if both of them are at the same
temperature right
so zero through states that if I have
two systems which are in thermal
equilibrium with a third system for
example if I have two systems a and B
such that a is in thermal equilibrium
with a third system let us say C and B
is also in thermal equilibrium with C
that means a and B are in thermal
equilibrium with each other so this was
the statement of 0 'clock let us
understand it more carefully let us
suppose I have two systems a and B let
us suppose a and B as two systems which
are not in thermal equilibrium that
means these two systems are at some
different temperature now let us suppose
there is another system C with which
these systems are in thermal equilibrium
that is let us suppose a and C are in
thermal equilibrium again B and C are in
thermal equilibrium but a and B are not
in thermal equilibrium what does that
means that means that a and B are also
in thermal equilibrium so or do we
conclude that if a is in thermal
equilibrium with C a is in thermal
equilibrium with C D is also in thermal
equilibrium with C
means that a is in thermal equilibrium
with B now the most significance or what
is the significance of this zero clock
the significance is that zeroth law
suggested that there should be a
physical quantity which should have the
same value for systems in thermal
equilibrium till now I already define
what is thermal equilibrium to you right
but it it originated in this way zeroth
law came up and zeroth law told this
fact that if two systems are in thermal
equilibrium with a third system that
means that these two systems are in
thermal equilibrium with each other so
from 0 to ah it was such a state that
there should be a physical quantity
which should have the same value when
two systems are in thermal equilibrium
so this physical quantity was defined as
temperature so temperature is the
quantity which defines or which
determines whether or not the system is
in thermal equilibrium with a
neighboring system so from there we
started defining thermal equilibrium as
two systems at same temperature is in
thermal equilibrium with each other so
basically the temperature I mean zeroth
law gave birth to the significance of
temperature in thermal equilibrium thank
you please visit exam few calm 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 thank you once
again
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Nov 24, 2024 Last updated |
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