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Byju's Answer
Standard IX
Physics
Heat Transfer
In the given ...
Question
In the given graph an ideal gas change its state from A to state C by two paths ABC and AC.
The internal energy of gas at state B is 20 J. The amount of heat (in J) supplied to the gas to go from A to B is
2
×
X
.Then value of x is;
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Solution
Q
B
A
=
U
B
A
+
W
B
A
It is an isochoric process so work done will be zero.
Now,
Q
B
A
=
U
A
−
U
B
T
A
=
20
n
R
------
(
P
V
=
n
R
T
)
U
A
=
1.5
n
R
T
A
=
30
J
o
u
l
e
SO
Q
B
A
=
30
−
20
=
10
J
o
u
l
e
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