一般氣體定律

The apparatus shown is used to study the relation between the temperature and the pressure of a gas at constant volume. Which of the following is NOT correct ?

The pressure of a fixed mass of gas at $25^\circ$C is $2\times10^5$ Pa. How would its pressure be if the gas were reduced to half its volume and its temperature were increased to $95^\circ$C ?

In the experiment shown in the diagram, volume of the air inside the syringe is $25$ ml when the pressure is $1.0\times10^5$ N m$^{-2}$. What is the volume of the air when the pressure is $0.5\times10^5$ N m$^{-2}$ ? (Assume that mass of the air in the syringe is constant.)

Which of the following graphs correctly shows the relation between the pressure ($P$) and the volume ($V$) of a fixed mass of gas under constant temperature ?

If the pressure of a fixed mass of gas of initial volume $V$ is doubled and its absolute temperature halved, its volume becomes

The initial pressure of a fixed mass of gas at $25^\circ$C is $2\times10^5$ Pa. What would its pressure be if the gas were reduced to half of its original volume and its temperature were increased to $95^\circ$C ?

A fixed mass of gas has its temperature changed from $127^\circ$C to $27^\circ$C at constant pressure. The ratio of the new volume to the old volume is

An inexpansible vessel contains $1.2$ kg of a gas at $300$ K. What is the mass of gas expelled from the vessel if it is heated from $300$ K to $400$ K under constant pressure ?

$6\times10^{-3}$ m$^3$ of a gas is contained in a vessel at $91^\circ$C and a pressure of $4\times10^5$ Pa. If the density of the gas at s.t.p. ($0^\circ$C and $10^5$ Pa) is $1.2$ kg m$^{-3}$, what is the mass of the gas ?