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A system is taken from state a to state c by two paths abc and abc as shown in the figure. The internal energy at a is `U_a = 10J`. Along the path adc the amount of heat absorbed `deltaQ_1 = 50 J` and the work obtained `deltaW_1 = 20J` whereas along the path abc the heat absorbed `deltaQ_2 = 36J`. The amount of work along the path abc is

A

6J

B

10 J

C

12 J

D

36 J

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The correct Answer is:
A
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