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Byju's Answer
Standard XII
Chemistry
Difference between Internal Energy and Enthalpy
1 mole of an ...
Question
1
mole of an ideal gas at
25
o
C
is allowed to expand reversible at constant temperature from a volume of
10
l
i
t
r
e
to
20
l
i
t
r
e
. Calculate the work done by the gas in joule and calorie.
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Solution
In isothermal reversibel expansion,we have;
w
=
−
2.303
∗
n
R
T
l
o
g
V
2
V
1
w
=
2.303
∗
1
∗
8.314
∗
298
l
o
g
20
10
w
=
2.303
∗
1
∗
8.314
∗
298
l
o
g
2
w
=
−
1779.6
J
w
=
2.303
∗
1
∗
2
∗
298
l
o
g
2
=
−
206.6
c
a
l
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