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AIIMS 2013 Physics Question Paper for free online practice with solutions
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© examsnet.com
Question : 17
Total: 60
Graph of specific heat at constant volume for a monoatomic gas is
Validate
Solution:
According to first law of thermodynamics
Δ
Q
=
Δ
U
+
p
Δ
V
If ΔQ is absorbed at constant volume, ΔV = 0
C
v
=
(
Δ
U
Δ
T
)
v
=
(
Δ
U
Δ
T
)
v
=
Δ
U
Δ
T
for an ideal monoatomic gas
Δ
U
Δ
T
=
3
2
R
;
C
v
=
3
2
R
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