Embibe Experts Solutions for Chapter: States of Matter: Gases and Liquids, Exercise 1: Exercise-1

Calculate the temperature of $4.0 \mathrm{m}\mathrm{o}\mathrm{l}$ of a gas occupying $5 \mathrm{d}{\mathrm{m}}^3$ at $3.32 \mathrm{bar}$.
$(\mathrm{R}=0.083 \mathrm{b}\mathrm{a}\mathrm{r} \mathrm{d}{\mathrm{m}}^3 {\mathrm{K}}^{-1} \mathrm{mo}{\mathrm{l}}^{-1})$.

Using the equation of state $\mathrm{PV}=\mathrm{n}\mathrm{R}\mathrm{T}$; show that at a given temperature density of a gas is proportional to gas pressure $\mathrm{P}$.

The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce dihydrogen. What volume of dihydrogen at ${20}^{\mathrm{o}} \mathrm{C}$ and one bar will be released when $0.15 \mathrm{g}$ of aluminium reacts?

The density of neon will be highest at:

Equal weights of ethane and hydrogen are mixed in an empty container at $25°\mathrm{C}$. The fraction of the total pressure exerted by hydrogen is
 

According to kinetic theory of gases, for a diatomic molecule:

Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is:

Explain the physical significance of Van der Waal's parameters.