10 mole of an ideal gas is undergoing the process shown in the figure. The heat involved in the process from 
to 
is 
Joule ( 
and 
). The value of 
is 
.
Text Solution
Verified by ExpertsA
From the given 
diagram, the process from 
to 
is an isochoric process because the volume remains constant at 
.
For an isochoric process, the work done 
.
According to the first law of thermodynamics, the heat involved is 
.
The change in internal energy is given by 
.
Using the ideal gas equation 
, we have 
.
Substituting this into the expression for 
:
Given values: 
moles, 
, and 
.
.
Thus, the value of 
is 21 .
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