1.

A 100 kg piston encloses 32 g of oxygen gas temperature of 27^@Cin a vertical cylinder of base area of 4 cm^2 . The air pressure outside is 1 xx 10^5 Pa . The axis of the cylinder is vertical, and the piston can move in it without friction. How much heat is to be transferred to the gas to raise the piston by

Answer»

3500 J
350 J
7000 J
750 J

Answer :A


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