Internal Energy NEET Questions

Physics - Thermodynamics

Internal Energy MCQ Questions


1.
Which of the following best defines internal energy of a system?
A.
The total kinetic energy of molecules
B.
The total potential energy of molecules
C.
The sum of kinetic and potential energies
D.
The sum of kinetic and thermal energies
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ANSWER :
C. The sum of kinetic and potential energies
2.
Internal energy of an ideal gas depends on:
A.
Pressure
B.
Volume
C.
Temperature
D.
Density
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ANSWER :
C. Temperature
3.
During an isothermal process for an ideal gas, the change in internal energy is:
A.
Zero
B.
Positive
C.
Negative
D.
Equal to work done
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ANSWER :
A. Zero
4.
For an ideal gas, which of the following statements is correct?

NEET - 2024

A.
Internal energy is a function of pressure
B.
Internal energy is a function of volume
C.
Internal energy is a function of temperature
D.
Internal energy is independent of all
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ANSWER :
C. Internal energy is a function of temperature
5.
What happens to the internal energy of a system when work is done on it without heat exchange?
A.
Internal energy increases
B.
Internal energy decreases
C.
No change in internal energy
D.
System reaches equilibrium
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ANSWER :
A. Internal energy increases
6.
In which of the following processes is the internal energy of an ideal gas constant?
A.
Isochoric process
B.
Isothermal process
C.
Adiabatic process
D.
Cyclic process
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ANSWER :
B. Isothermal process