NEET Chemistry First Law Assertion Reason Question
Assertion (A): For an isolated system, the change in internal energy is zero.
Reason (R): The first law of thermodynamics states that the energy of an isolated system is constant.
Both A and R are true, and R explains A.
Both A and R are true, but R does not explain A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
According to the first law of thermodynamics, the energy of an isolated system remains constant, leading to a zero change in internal energy (∆U = 0). Therefore, R correctly explains A.
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