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Question: P-V diagram of cyclic process ABCA is as shown in figure. Choose the correct statement – ![](https:...

P-V diagram of cyclic process ABCA is as shown in figure. Choose the correct statement –

A

DQA ® B = negative

B

DUB ® C = positive

C

DWCAB = negative

D

All of these

Answer

All of these

Explanation

Solution

A ® B, PV = const., P¯, V¯, T¯ So (DU) = –ve

B ® C, P = const., V µ T, V­, T­, (DU) = +ve

C ® B, C ® A, V = const., A ® B, V¯, (DW) = –ve