The deviation of a gas from ideal behavior can be expressed by which of the following?

In the equation $PV = nRT$,which one cannot be the numerical value of $R$?

At a constant temperature,two different gases $G_1$ and $G_2$ are kept in separate flasks. The molar mass of $G_2$ is three times that of $G_1$,while the density of $G_1$ is two times that of $G_2$. What is the ratio of the pressure exerted by $G_2$ to that of $G_1$ in their respective flasks?

Starting out on a trip into the mountains,you inflate the tires on your automobile to a recommended pressure of $3.21 \times 10^5 \ Pa$ on a day when the temperature is $-5.0 \ ^\circ C$. You drive to the beach,where the temperature is $28 \ ^\circ C$. Assume that the volume increased by $3 \%$. What is the final pressure in the tires?

What is the density of carbon monoxide at $STP$ in $g \, L^{-1}$?

The $log \, T$ vs $log \, V$ curve is plotted for an ideal gas as shown. Which of the following is true for the gas?