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why work is n...

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why work is not done on or by the gas in case of isochoric process?

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Solution

$S I n c e i n i s o c h o r i c p r o c e s s t h e v o l u m e o f t h e t h e r m o d y n a m i c a l s y s t e m r e m a i n s t h e s a m e (c o n s \tan t) s o t h e w h o l e a m o u n t o f h e a t e n e r g y i s u s e d u p t o i n c r e a s e t h e t h e i n t e r n a l e n e r g y o f t h e s y s t e m . S o n o w o r k i s r e q u i r e d t o d o a g a i n g t e x t e r n a l c o n d i t i o n s .$

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Q. Assertion :In a thermodynamic process, initial volume of gas is equal to final volume of gas. Work done by gas in this process should be zero. Reason: Work done by gas in isochoric process is zero.

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Q. The three processes in a thermodynamic cycle shown in the figure are : Process

1 \to 2

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List - I	List - II
P. In process I	1. Work done by the gas is zero
Q. In process II	2. Temperature of the gas remains unchanged
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