Chemistry-First Law
NEET Chemistry First Law MCQ Question
Type: MCQ-diagram based-Easy-Class 11
Consider a diagram representing an isolated system where no energy is transferred as heat or work. Which label correctly describes the change in internal energy (ΔU) for this system?
A
ΔU = 0
B
ΔU = q + w
C
ΔU = q - w
D
ΔU = w - q
Correct Answer
Option A
Detailed Explanation
In an isolated system, there is no transfer of energy as heat or work (q = 0 and w = 0), so the change in internal energy is ΔU = 0.
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