The equation for Boyle's law is:

At constant temperature and pressure,what is the volume of $n$ moles of different gases?

An ideal gas with a molar mass of $40 \ g \ mol^{-1}$ has a mass of $120 \ g$. It occupies a volume of $20 \ L$ at a temperature of $400 \ K$. Using $R = 0.0821 \ L \ atm \ K^{-1} \ mol^{-1}$,the pressure of the gas is ........ $atm$.

The value of the compressibility factor for an ideal gas is ........ .

An ideal gas expands isothermally and reversibly from $10 \ m^3$ to $20 \ m^3$ at $300 \ K$,performing $5.187 \ kJ$ of work on the surroundings. Calculate the number of moles of gas used.

At the same conditions of pressure,volume,and temperature,work done is maximum for which gas if all gases have equal masses?