Physics-
General
Easy
Question
Consider the thermodynamics cycle shown on PV diagram The process 
is isobaric, 
is isochoric. The following internal energy and heat are given:
and 
. The heat flow in the process 
is :
- -20 kJ
- +25 kJ
- -25 kJ
- Data are insufficient
The correct answer is: -25 kJ
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