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JEE Advanced Model Paper 6 with solutions for online practice

Passage-III

The first law of thermodynamics for a closed system is dU = dq + dw ; where dw = dwpv + dwnon−pv . The most kind of wnon−pv is electrical work. As per IUPAC conventionwork done on the system is positive.

Question : 55 of 60

Marks: +1, -0

A system generates 50J is electrical energy, has 150 J of pressure – volume work done on it by the surroundings while releasing 300J of heat energy. The change in internal energy of the system is (-2 × 10x) . x is .....

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