The ratio $\gamma$ for inert gases is

How will the viscosity of a liquid be affected by an increase in temperature?

At which of the following conditions is the density of a gas maximum?

Fill in the blanks:
$(1)$ The properties of gases were first measured by ......... .
$(2)$ The dipole-dipole interaction energy between stationary polar molecules is proportional to .......... .
$(3)$ The interaction energy between rotating polar molecules is proportional to .......... .
$(4)$ The bond energy of a hydrogen bond is about ......... $kJ \ mol^{-1}$.

$A$ neon-dioxygen mixture contains $64 \ g$ $O_2$ and $160 \ g$ $Ne$. If the total pressure is $25 \ bar$,calculate the partial pressure of dioxygen. (in $bar$)

$1 \ L$ each of gases $A$ and $B$ diffused through a membrane in $15$ and $30$ minutes,respectively,under identical conditions. What is the ratio of molecular weight of $A$ and $B$?