If 50 calorie are added to a system and system does work of 30 calorie on surroundings, the change in internal energy of system is (A) 20 cal (B) 50 cal (C) 40 cal (D) 30 cal B D A C
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Step 1: The first law of thermodynamics states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. Show more…
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