Chemistry-First Law
NEET Chemistry First Law MCQ Question
Type: MCQ-fact-Easy-Class 11
What does the first law of thermodynamics state about the energy of an isolated system?
A
The energy of an isolated system is constant.
B
The energy of an isolated system can increase.
C
The energy of an isolated system decreases over time.
D
The energy of an isolated system is variable.
Correct Answer
Option A
Detailed Explanation
The first law of thermodynamics states that the energy of an isolated system is constant, which is commonly referred to as the law of conservation of energy. This is reflected in the equation ∆U = q + w, indicating that internal energy changes depend only on initial and final states.
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