First slide

laws

Question

In fig., if process is isothermal then V_Cis

Moderate

A

3 V₀
B

2 V₀
C

V₀
D

none of the above

Solution

Process AB is isochoric. so,
PV = n RT
$â´ \frac{P_{0}}{2 P_{0}} = \frac{T_{A}}{T_{B}} or T_{B} = 2 T_{A}$
B C is isothermal process, i.e.,
$T_{B} = T_{C} = 2 T_{A}$
C A represents an isobaric process. Hence
$\frac{V_{0}}{T_{A}} = \frac{V_{C}}{T_{C}} or V_{C} = (\frac{T_{C}}{T_{A}}) V_{0} = (\frac{2 T_{A}}{T_{A}}) V_{0} or V_{C} = 2 V_{0}$

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