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Byju's Answer
Standard XII
Physics
Heat Capacity
One mole of a...
Question
One mole of an ideal monoatomic gas undergoes the process
P
=
α
T
1
/
2
, where
α
is a constant. If the molar specific heat of the gas is given by
x
×
R
,then find
x
.
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Solution
The given process is
P
=
α
T
1
/
2
⟹
P
T
−
1
/
2
=
α
=
c
o
n
s
t
a
n
t
Comparing with
P
T
m
1
−
m
=
c
o
n
s
t
a
n
t
we get
m
1
−
m
=
−
1
2
⟹
m
=
−
1
For monoatomic gas
γ
=
1.67
Molar specific heat of the gas
C
=
R
γ
−
1
+
R
1
−
m
∴
C
=
R
1.67
−
1
+
R
1
−
(
−
1
)
=
2
R
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