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Q.
An ideal gas is heated from $27^{\circ} C$ to $627^{\circ} C$ at constant pressure. If initial volume was $4 m ^{3}$, then the final volume of the gas will be
Given : Initial temperature $\left(T_{1}\right)=27^{\circ} C =300\, K$;
Final temperature $\left(T_{2}\right)=627^{\circ} C =900 \,K$ and initial volume $\left(V_{1}\right)=4 \,m ^{3}$. We know from the Charle's law
$\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}$ or $V_{2}=V_{1} \times \frac{T_{2}}{T_{1}}=4 \times \frac{900}{300}=12 m ^{3} .$