MHT CET 2026 Chemistry question

In a particular reaction, 4 kJ heat is released by the system and 12 kJ work done on the system. Calculate the and .

Answer: (B)

Solution

Heat released by the system means kJ; work done on the system means kJ. First law: kJ. Enthalpy change is the heat exchanged at constant pressure, so

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Question ID VK-099375