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An ideal mono atomic gas is taken throug...

An ideal mono atomic gas is taken through the cyclic process shown in fig. Linear expansion from A to B following by adiabatic compression back to original state

A

Efficiency of cyclic process is zero

B

During process A to B heat is released only

C

During process A to B heat is absorbed only

D

During linear process heat enters and leaves the process

Text Solution

Verified by Experts

The correct Answer is:
D
Since `P_(1)V_(1) gt P_(2)V_(V) rArr T_(A) gt T_(B)` work done is `+ve` and efficiency is positive quantity
`eta = ("work done")/("Heat given") = 1 - (Q_("released"))/(Q_("absorbed"))`
Therefore there must be some heat absorbed in the process. During adiabatic process `DeltaQ = 0`, therefore during linear process heat will entre and leaves system at different times.
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