Two graphs for an ideal gas are given below. Determine which value,$m_1$ or $m_2$,is greater.

The densities of air at $25\,^o C$ and $100\,^o C$ are $1.2\ gL^{-1}$ and $0.9\ gL^{-1}$ respectively. Assuming that the air obeys Charles's law,the value of absolute zero of temperature in degree Celsius is .............. $^o C$.

At a temperature of $18^{\circ}C$ and a pressure of $765 \, torr$,the weight of $1.299 \, L$ of a gas is $2.71 \, g$. Calculate the molar mass of the gas at $STP$.

The density of an ideal gas can be given by where $P$,$V$,$M$,$T$ and $R$ respectively denote pressure,volume,molar mass,temperature and universal gas constant.

$25 \ g$ of each of the following gases are taken at $27^{\circ}C$ and $600 \ mm$ pressure. Which of these will have the least volume?

In order to increase the volume of a gas by $10 \%$,the pressure of the gas should be