If two bodies were allowed to reach thermal equilibrium, one by heat conduction and other by operating a Carnot engine between them and extracting work, the final equilibrium temperatures would be different.

this is because of the higher value of the total internal energy

this is because of the lower value of the total internal energy

this is because of the higher value of the total internal energy

Explore topic-wise MCQs in Thermodynamics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.

1.	If two bodies were allowed to reach thermal equilibrium, one by heat conduction and other by operating a Carnot engine between them and extracting work, the final equilibrium temperatures would be different.
A.	this is because of the lower value of the total internal energy
B.	this is because of the higher value of the total internal energy
C.	both of the mentioned
D.	none of the mentioned
Answer» B. this is because of the higher value of the total internal energy

Discussion

2.	The ___ in entropy in an irreversible change is a measure of the extent to which energy ___ in that change.
A.	decrease, degrades
B.	increase, degrades
C.	increase, increases
D.	decrease, increases
Answer» C. increase, increases

Discussion

3.	When a gas is throttled adiabatically from a high to a low pressure,
A.	the enthalpy remains same
B.	there is degradation of energy
C.	both of the mentioned
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

4.	If the first law is the conservation of energy, then the second law is called the law of degradation of energy.
A.	true
B.	false
Answer» B. false

Discussion

5.	At ambient temperature, exergy of the fluid is
A.	neagtive
B.	positive
C.	infinity
D.	zero
Answer» E.

Discussion

6.	The available energy of a system ___ as its temperature or pressure decreases and approaches that of the surroundings.
A.	increases
B.	decreases
C.	remains constant
D.	none of the mentioned
Answer» C. remains constant

Discussion

7.	The exergy of a fluid at a higher temperature is ___ than that at a lower temperature and ___ as the temperature decreases.
A.	less, increases
B.	more, increases
C.	more, decreases
D.	less, decreases
Answer» D. less, decreases

Discussion

Explore topic-wise MCQs in Thermodynamics.

If two bodies were allowed to reach thermal equilibrium, one by heat conduction and other by operating a Carnot engine between them and extracting work, the final equilibrium temperatures would be different.

The _ in entropy in an irreversible change is a measure of the extent to which energy _ in that change.

When a gas is throttled adiabatically from a high to a low pressure,

If the first law is the conservation of energy, then the second law is called the law of degradation of energy.

At ambient temperature, exergy of the fluid is

The available energy of a system ___ as its temperature or pressure decreases and approaches that of the surroundings.

The exergy of a fluid at a higher temperature is _ than that at a lower temperature and _ as the temperature decreases.

Explore topic-wise MCQs in Thermodynamics.

If two bodies were allowed to reach thermal equilibrium, one by heat conduction and other by operating a Carnot engine between them and extracting work, the final equilibrium temperatures would be different.

The ___ in entropy in an irreversible change is a measure of the extent to which energy ___ in that change.

When a gas is throttled adiabatically from a high to a low pressure,

If the first law is the conservation of energy, then the second law is called the law of degradation of energy.

At ambient temperature, exergy of the fluid is

The available energy of a system ___ as its temperature or pressure decreases and approaches that of the surroundings.

The exergy of a fluid at a higher temperature is ___ than that at a lower temperature and ___ as the temperature decreases.

The _ in entropy in an irreversible change is a measure of the extent to which energy _ in that change.

The exergy of a fluid at a higher temperature is _ than that at a lower temperature and _ as the temperature decreases.