NEET Chemistry States Of Matter Molecular Velocities MCQs

A mixture of two gases, A (molar mass $M_A$) and B (molar mass $M_B$), is at a constant temperature T. If the ratio of their most probable speeds is 2:1, what is the ratio of their molar masses?

At a specific temperature, the fraction of gas molecules possessing speeds between $v$ and $v + dv$ is given by $f(v)dv$. If the distribution is Maxwellian, which of the following describes the behavior of $f(v)$ as $T o 0$?

For a real gas at moderate pressure and temperature, the root mean square speed is found to be $v_{rms}$. How would $v_{rms}$ change if the gas were ideal and at the same temperature?

Consider a gas at temperature T. Which of the following is always true about the relationship between the most probable speed ($v_{mp}$), average speed ($\bar{v}$), and root mean square speed ($v_{rms}$) of its molecules?

A gas effuses through a small orifice at a rate r. If the temperature is quadrupled and the molar mass is halved, what is the new effusion rate?

Two identical containers hold equal moles of two different ideal gases, A and B, at the same temperature. The molecular mass of gas A is twice that of gas B. What is the ratio of the average kinetic energy of the molecules of gas A to gas B?

Which of the following is NOT a factor affecting the speed of gas molecules?

At a given temperature, which gas molecules will have the highest average speed?

Which type of molecular velocity is independent of temperature?

If the temperature of a gas is doubled, the root mean square velocity of its molecules will: