$A$ container consists of a mixture of four gases: $5 \text{ g } H_2$,$8 \text{ g } He$,$50 \text{ g } CO_2$,and $20 \text{ g } Ne$ at a certain temperature. Which of the following gases exerts the minimum partial pressure?

If a gas diffuses $1/5$ times as fast as hydrogen,its molar mass will be....

The atomic masses of carbon,nitrogen,and oxygen are $12, 14$,and $16$ respectively. Which of the following pairs of gases will diffuse at the same rate?

Fill in the blanks:
$(1)$ The temperature at which gases possess zero volume is called ........... .
$(2)$ In a mixture of gases,the pressure exerted by each individual gas is called .......... .
$(3)$ The pressure exerted by water vapor is known as ..... .
$(4)$ Thermal energy is directly proportional to the ..... of the substance.

The ratio of rates of diffusion of gases $X$ and $Y$ is $1:5$ and that of $Y$ and $Z$ is $1:6$. The ratio of rates of diffusion of $Z$ and $X$ is

The rate of diffusion of a gas is ..... times that of hydrogen. (Molecular weight = $98$)