Chemistry-First Law
NEET Chemistry First Law MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements about the First Law of Thermodynamics is correct?
A
The change in internal energy of a system is independent of the path taken.
B
Energy can be created or destroyed in an isolated system.
C
The First Law applies only to exothermic reactions.
D
The total energy of an isolated system can vary with time.
Correct Answer
Option A
Detailed Explanation
The First Law of Thermodynamics states that the change in internal energy (∆U) is dependent only on the initial and final states, making it independent of the path taken. This aligns with the statement in the NCERT context about the equation ∆U = q + w, which is a mathematical representation of this principle.
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