Work NEET Questions

Physics - Thermodynamics

Work MCQ Questions


1.
When a gas expands at constant pressure, the work done by the gas is:
A.
W = P ΔV
B.
W = V ΔP
C.
W = P ΔT
D.
W = T ΔV
😑 View Answer Rough Work Error
ANSWER :
A. W = P ΔV
2.

In an isothermal process, the work done by an ideal gas is:

A.

nR ΔT

B.

P ΔV

C.

nRT ln(V2/V1)

D.

P1V1 - P2V2

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ANSWER :

C. nRT ln(V2/V1)

3.

Work done in an adiabatic process is given by:

A.

W = (P1V1 - P2V2)/(γ-1)

B.

W = P (V2 - V1)

C.

W = -P ΔV

D.

W = P1V1 - P2V2

😑 View Answer Rough Work Error
ANSWER :

A. W = (P1V1 - P2V2)/(γ-1)

4.
For a cyclic process, the net work done is:
A.
Zero
B.
Equal to heat absorbed
C.
Equal to heat released
D.
Equal to internal energy change
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ANSWER :
A. Zero
5.
The work done by the system is negative when:
A.
The system absorbs heat
B.
The system releases heat
C.
Work is done on the system
D.
Work is done by the system
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ANSWER :
C. Work is done on the system
6.
In an isobaric process, work done depends on:
A.
Initial volume only
B.
Change in pressure only
C.
Change in temperature only
D.
Change in volume only
😑 View Answer Rough Work Error
ANSWER :
D. Change in volume only