Physics-Heat Engines
NEET Physics Heat Engines MCQ Question
Type: MCQ-numerical-Easy-Class 11
In a heat engine, if the change in internal energy (∆U) is zero, and the work done (w) is 50 J, what is the heat absorbed (q) by the system?
A
50 J
B
-50 J
C
0 J
D
100 J
Correct Answer
Option A
Detailed Explanation
According to the first law of thermodynamics, ∆U = q + w. Given that ∆U = 0 and w = 50 J, q must also be 50 J to satisfy the equation.
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