1
MHT CET 2021 20th September Morning Shift
+1
-0

One mole of an ideal gas expands adiabatically at constant pressure such that its temperature $$T \propto {1 \over {\sqrt V }}$$. The value of $$\gamma$$ for the gas is ($$\gamma = {{{C_p}} \over {{C_v}}},V =$$ Volume of the gas)

A
1.8
B
1.5
C
1.3
D
1.4
2
MHT CET 2021 20th September Morning Shift
+1
-0

On an imaginary linear scale of temperature (called 'W' scale) the freezing and boiling points of water are 39$$^\circ$$ W and 239$$^\circ$$ W respectively. The temperature on the new scale corresponding to 39$$^\circ$$C temperature on Celsius scale will be

A
139$$^\circ$$ W
B
78$$^\circ$$ W
C
117$$^\circ$$ W
D
200$$^\circ$$ W
3
MHT CET 2021 20th September Morning Shift
+1
-0

Specific heats of an ideal gas at constant pressure and volume are denoted by $$\mathrm{C}_{\mathrm{p}}$$ and $$\mathrm{C}_{\mathrm{v}}$$ respectively. If $$\gamma=\frac{\mathrm{C}_{\mathrm{p}}}{\mathrm{C}_{\mathrm{v}}}$$ and $$\mathrm{R}$$ it's the universal gas constant then $$\mathrm{C}_{\mathrm{v}}$$ is equal to

A
$$\frac{(\gamma-1)}{(\gamma+1)}$$
B
$$\frac{(\gamma-1)}{\mathrm{R}}$$
C
$$\mathrm{R} \gamma$$
D
$$\frac{R}{(\gamma-1)}$$
4
MHT CET 2021 20th September Morning Shift
+1
-0

For a monoatomic gas, work done at constant pressure is W. The heat supplied at constant volume for the same rise in temperature of the gas is

A
W
B
$$\mathrm{\frac{5W}{2}}$$
C
$$\mathrm{\frac{W}{2}}$$
D
$$\mathrm{\frac{3W}{2}}$$
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Calculus
Coordinate Geometry
EXAM MAP
Joint Entrance Examination