Question

0.50 mol of argon gas is admitted to an evacuated 50 cm3 container at 20∘C. The gas then undergoes an isobaric heating to a temperature of 370 ∘C. What is the final volume of the gas? Choose the pV diagram representing the process.

Answer 1

If the pressure of a system remains constant then the change is known as isobaric change.

\(\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}\)

\(V_{2}=\frac{T_{2}}{T_{1}} V_{1}=\left(\frac{370+273}{20+273}\right)\left(50 \mathrm{~cm}^{3}\right)=110 \mathrm{~cm}^{3}\)

The PV diagram will be straight line parallel to \(x\) axis