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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

If 2500 cal of heat is added to a system while the system does work equivalent to 3500 cal by expanding against the surrounding atmosphere, the value of for the system is

Answer: (A)

Solution

q = +2500 cal and W = -3500 cal (work done by the system), so = 2500 - 3500 =

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Question ID VK-064452