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Thermodynamic Processes

For an isothe...

Question

For an isothermal process :

A

dQ= dW

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B

dQ

=

dU

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C

dW

=

dU

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D

dQ = dU + dW

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Solution

The correct option is A dQ= dW
Internal energy is a function of temperature only. Therefore, in case of isothermal process, it will be constant.

From $F i r s t L a w o f T h e r m o d y n a m i c s$ , $d Q = d U + d W$
and here, $d U = 0$
So, $d Q = d W$

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