1
JEE Main 2017 (Offline)
+4
-1
CP and Cv are specific heats at constant pressure and constant volume respectively. It is observed that
CP – Cv = a for hydrogen gas
CP – Cv = b for nitrogen gas
The correct relation between a and b is
A
a = 28 b
B
a = 1/14 b
C
a = b
D
a = 14 b
2
JEE Main 2016 (Online) 10th April Morning Slot
+4
-1
Out of Syllabus
A Carnot freezer takes heat from water at 0oC inside it and rejects it to the room at a temperature of 27oC. The latent heat of ice is 336×103 J kg−1. If 5 kg of water at 0oC is converted into ice at 0oC by the freezer, then the energy consumed by the freezer is close to :
A
1.67 $$\times$$ 105 J
B
1.68 $$\times$$ 106 J
C
1.51 $$\times$$ 105 J
D
1.71 $$\times$$ 107 J
3
JEE Main 2016 (Online) 10th April Morning Slot
+4
-1
Which of the following shows the correct relationship between the pressure ‘P’ and density $$\rho$$ of an ideal gas at constant temperature ?
A
B
C
D
4
JEE Main 2016 (Online) 9th April Morning Slot
+4
-1
The ratio of work done by an ideal monoatomic gas to the heat supplied to it in an isobaric process is :
A
$${3 \over 5}$$
B
$${2 \over 3}$$
C
$${3 \over 2}$$
D
$${2 \over 5}$$
EXAM MAP
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