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JEE Main Physics Class 11 Thermodynamics Part 2 Questions
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© examsnet.com
Question : 15
Total: 82
The pressure and volume of an ideal gas are related as
PV
3
∕
2
=
K
(Constant). The work done when the gas is taken from state
A
(
P
1
,
V
1
,
T
1
)
to state
B
(
P
2
,
V
2
,
T
2
)
is :
[1-Feb-2024 Shift 1]
2
(
P
1
V
1
−
P
2
V
2
)
2
(
P
2
V
2
−
P
1
V
1
)
2
(
√
P
1
V
1
−
√
P
2
V
2
)
2
(
P
2
√
V
2
−
P
1
√
V
1
)
Validate
Solution:
👈: Video Solution
For
PV
x
=
constant
If work done by gas is asked then
W
=
n
R
∆
T
1
−
x
Here
x
=
3
2
∴
W
=
P
2
V
2
−
P
1
V
1
−
1
2
=
2
(
P
1
V
1
−
P
2
V
2
)
.
.
.
.
.
Option (1) is correct
If work done by external is asked then
W
=
−
2
(
P
1
V
1
−
P
2
V
2
)
.
.
.
.
. Option (2) is correct
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