Chemistry-First Law
NEET Chemistry First Law MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a system undergoing a change in state where both heat transfer and work are involved. Which of the following statements about the change in internal energy (∆U) is correct?
A
∆U is dependent only on the initial and final states of the system.
B
∆U will vary based on the specific path taken between the initial and final states.
C
∆U can be zero if heat transfer is equal to the work done on the system.
D
∆U is always positive when work is done on the system.
Correct Answer
Option A
Detailed Explanation
The change in internal energy (∆U) depends only on the initial and final states, as per the first law of thermodynamics, ∆U = q + w.
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