1
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $C_p$ and $C_v$ are molar specific heats of an ideal gas at constant pressure and volume respectively and ' $\gamma$ ' is $\mathrm{C}_{\mathrm{p}} / \mathrm{C}_{\mathrm{v}}$ then $\mathrm{C}_{\mathrm{p}}=$ ( $\mathrm{R}=$ universal gas constant)

A
$\frac{\gamma \mathrm{R}}{\gamma-1}$
B
$\gamma \mathrm{R}$
C
$\frac{1+\gamma}{1-\gamma}$
D
$\frac{\mathrm{R}}{\gamma-1}$
2
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The change in the internal energy of the mass of gas, when the volume changes from ' $V$ ' to ' 2 V ' at constant pressure ' $P$ ' is ( $\gamma$ is the ratio of specific heat of gas at constant pressure to specific heat at constant volume)

A
$\frac{\mathrm{PV}}{\gamma-1}$
B
$\frac{\mathrm{PV}}{\gamma+1}$
C
$\frac{\gamma-1}{\mathrm{PV}}$
D
$\frac{\gamma+1}{\mathrm{PV}}$
3
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A pergect gas of volume 5 litre is compressed isothermally to volume of 1 litre. The r.m.s. speed of the molecules will

A
increase by 10 times
B
decrease by 10 times
C
increase by 5 times
D
remain unchanged
4
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A real gas behaves as an ideal gas at

A
low pressure and low temperature.
B
low pressure and high temperature.
C
high pressure and low temperature.
D
high pressure and high temperature.
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