If the rate of diffusion of gas $A$ is five times that of gas $B$,what will be the ratio of the densities of $A$ and $B$?

Which of the following relations is true based on the partial pressure and mole fraction?

In a closed container,the number of oxygen and hydrogen molecules are equal at a pressure of $740 \, mm$. If oxygen is removed from the system,the pressure will be:

On what factors does the force $F$ required to maintain the flow of layers in a liquid depend?

Write the formula for partial pressure.

Given below are two statements.
Statement $I$: Viscosity of liquid decreases with increase in temperature.
Statement $II$: The units of viscosity are $kg \ m^{-1} \ s^{-2}$.
The correct answer is