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Class 11 NEET Physics Thermodynamics and Kinetic Theory
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© examsnet.com
Question : 68
Total: 105
An ideal gas heat engine operates in Carnot cycle between
227
°
C
and
127
°
C
. It absorbs
6
×
10
4
cal of heat at higher temperature. Amount of heat converted to work is
(2005)
4.8
×
10
4
cal
6
×
10
4
cal
2.4
×
10
4
cal
1.2
×
10
4
cal
Validate
Solution:
1
−
T
2
T
1
=
1
−
Q
2
Q
1
⇒
1
−
400
500
=
1
−
Q
2
6
×
10
4
⇒
Q
2
=
4.8
×
10
4
cal
Net heat converted into work
=
6.0
×
10
4
−
4.8
×
10
4
=
1.2
×
10
4
cal
.
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