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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

A system evolves 152.5 cal energy. But works equivalent to 54.3 cal energy. Its change in internal energy will be equal to

Answer: (B)

Solution

Heat evolved gives q = -152.5 cal and the work done by the system gives w = -54.3 cal, so

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Question ID VK-063992