NEET Chemistry First Law MCQ Question
Which of the following statements about the First Law of Thermodynamics is correct?
The change in internal energy of a system is independent of the path taken.
Energy can be created or destroyed in an isolated system.
The First Law applies only to exothermic reactions.
The total energy of an isolated system can vary with time.
Correct Answer
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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