STANDARDPhysics-Thermodynamics
STANDARD Physics Adiabatic Processes MCQ Question
Type: MCQ-conceptual-Medium-Class 11
If a gas is compressed adiabatically by doing work of 150 J, the change in internal energy of the gas is
A
100 J
B
150 J
C
200 J
D
250 J
Correct Answer
Option B
Detailed Explanation
Since the gas is compressed adiabatically, then dQ = 0 and dW = −150 J. From the first law of thermodynamics, dQ = dU + dW, dU = −dW = −(−150) = 150 J.
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