1
MHT CET 2023 9th May Morning Shift
+1
-0

A gas at N.T.P. is suddenly compressed to $$\left(\frac{1}{4}\right)^{\text {th }}$$ of its original volume. The final pressure in (Given $$\gamma=$$ ratio of sp. heats $$=\frac{3}{2}$$ ) atmosphere is ( $$\mathrm{P}=$$ original pressure)

A
$$4 \mathrm{P}$$
B
$$\frac{3}{2} \mathrm{P}$$
C
$$8 \mathrm{P}$$
D
$$\frac{1}{4} \mathrm{P}$$
2
MHT CET 2023 9th May Morning Shift
+1
-0

In a thermodynamic process, there is no exchange of heat between the system and surroundings. Then the thermodynamic process is

A
isothermal
B
isobaric
C
isochoric
D
3
MHT CET 2023 9th May Morning Shift
+1
-0

According to kinetic theory of gases, which one of the following statements is wrong?

A
All the molecules of a gas are identical.
B
Collisions between the molecules of a gas and that of the molecules with the walls of the container are perfectly elastic.
C
The molecules do not exert appreciable force on one another except during collision.
D
The pressure exerted by a gas is due to the collision between the molecules of the gas.
4
MHT CET 2021 21th September Evening Shift
+1
-0

What is the ratio of the velocity of sound in hydrogen $$\left(\gamma=\frac{7}{5}\right)$$ to that in helium $$\left(\gamma=\frac{5}{3}\right)$$ at the same temperature? (Molecular weight of hydrogen and helium is 2 and 4 respectively.)

A
$$\frac{\sqrt{42}}{5}$$
B
$$\frac{5}{\sqrt{42}}$$
C
$$\frac{\sqrt{21}}{5}$$
D
$$\frac{5}{\sqrt{21}}$$
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
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