The ratio of rates of diffusion of gases $X$ and $Y$ of molecular weights $36$ and $64$ is

What is the boiling point of $SO_2$ gas (in $K$)?

Fill in the blanks:
$(1)$ The forces of attraction and repulsion between molecules and atoms are called ....... .
$(2)$ The attractive intermolecular forces between molecules of a substance are also known as .............. .
$(3)$ London forces are also known by the name of ........... .
$(4)$ The mathematical form of Charles's Law is ........ .

$A$ mixture of $N_2$ and $Ar$ gases in a cylinder contains $7 \ g$ of $N_2$ and $8 \ g$ of $Ar$. If the total pressure of the mixture of gases in the cylinder is $27 \ bar$,the partial pressure of $N_2$ is $......... \ bar$.
[Use atomic masses (in $g \ mol^{-1}$) : $N=14, Ar=40$]

What is the ratio of the rate of diffusion of oxygen $(O_2)$ to hydrogen $(H_2)$?

The ratio of $\frac{C_p}{C_v}$ for inert gases is