Chemistry-First Law
NEET Chemistry First Law MCQ Question
Type: MCQ-conceptual-Medium-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
In an isolated system, the sum of heat and work is always zero.
D
The First Law states that energy can be transferred as heat or work but not both.
Correct Answer
Option A
Detailed Explanation
The First Law of Thermodynamics, represented by the equation ∆U = q + w, indicates that the change in internal energy depends only on the initial and final states of the system, not on how the change occurs. This aligns with the concept of energy conservation in isolated systems.
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