For a monoatomic gas at constant pressure,the $V \rightarrow T$ graph is . . . . . .

$A$ hydrogen cylinder is designed to withstand an internal pressure of $100 \,atm$. At $27^{\circ} C$,hydrogen is pumped into the cylinder which exerts a pressure of $20 \,atm$. At what temperature does the danger of explosion first set in? (in $K$)

For three low density gases $A, B, C$,pressure versus temperature graphs are plotted while keeping them at constant volume,as shown in the figure. The temperature corresponding to the point '$K$' is $...........\,{}^{\circ}\,C$.

State Avogadro's law (Hypothesis).

According to Boyle's law, the product $PV$ remains constant. The $SI$ unit of $PV$ is same as that of

If in a given container there are $N$ number of molecules,then what will be the number of moles?