Monoatomic, diatomic and triatomic gases whose initial volume and… - Vidyadip

MCQ

Monoatomic, diatomic and triatomic gases whose initial volume and pressure are same, are compressed till their volume becomes half the initial volume.

✓
If the compression is adiabatic then monoatomic gas will have maximum final pressure.
B
If the compression is adiabatic then triatomic gas will have maximum final pressure.
C
If the compression is adiabatic then their final pressure will be same.
D
If the compression is isothermal then their final pressure will be different.

✓

Answer

Correct option: A.

If the compression is adiabatic then monoatomic gas will have maximum final pressure.

a
For an adiabatic process,

$P V^{\gamma}=$ constant

or

$\frac{P_{1}}{P_{2}}=\left(\frac{V_{2}}{V_{1}}\right)^{\gamma}$

or

$P_{2}=2^{\gamma} P_{1}$

Now, for a monoatomic gas, the value of $\gamma$ is the highest

Thus, for the same change in volume, the monoatomic gas will have the maximum pressure.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 11. thermodynamics→11. thermodynamics — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

$r.m.s.$ velocity of nitrogen molecules at $NTP$ is ...... $m/s$

A ball falling freely from a height of $4.9\,m,$ hits a horizontal surface. If $e = \frac {3}{4}$ , then the ball will hit the surface, second time after .............. $\mathrm{s}$

A stone of mass m is tied to a string and is moved in a vertical circle of radius $ r$ making n revolutions per minute. The total tension in the string when the stone is at its lowest point is

$N( < 100)$ molecules of a gas have velocities $1, 2, 3\,.\,.\,.\,.\,.N/km/s$ respectively. Then

A particle of mass $m$ moving with velocity $\left( {3\hat i + 2\hat j} \right)\,m/s,$ collides with another body of mass $M$ and finally moves with velocity $\left( {-2\hat i + \hat j} \right)\,m/s,$ then during the collision

A particle is projected with an angle of projection $\theta$ to the horizontal line passing through the points $( P , Q )$ and $( Q , P )$ referred to horizontal and vertical axes (can be treated as $x$-axis and $y$-axis respectively).

The angle of projection can be given by

The ratio of inertial mass and gravitational mass has been found to be $1$ for all material bodies. Were this ratio different for different bodies, the two bodies having same gravitational mass but different inertial mass would have?

The trajectory of a particle moving in vast maidan is as shown in the figure. The coordinates of a position A are $(0,2)$. The coordinates of another point at which the instantaneous velocity is same as the average velocity between the points are

A body starts from rest from a point distance $R_0$ from the centre of the earth. The velocity acquired by the body when it reaches the surface of the earth will be ($R$ represents radius of the earth).

According to molecular kinetic theory, the velocity of molecules at absolute zero temperature