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Question

The given figure shows a change of state A to state C by two paths ABC and AC for an ideal gas. Calculate the:
Amount of heat supplied to the gas to go from A to B, if internal energy of gas at state B is 20 J.

394084.PNG

A
2
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B
4
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C
5
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D
10
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Solution

The correct option is D 10
For the path AB,
q=ΔUw(w=0)
q=ΔU=UBUA=2010=10J

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