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Calorimetry

In a cyclic p...

Question

In a cyclic process shown in the figure an ideal gas is adiabatically taken firm B to A, the work done on the gas during the process B ⟶ A is 30 J, when the gas is taken from A → B the heat absorbed by the gas is 20 J. The change in internal energy of the gas in the process A ⟶ B is

A

20 J

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B

-30 J

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C

50 J

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D

-10 J

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Solution

The correct option is B
-30 J

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