A container has two chambers of volumes \({\mathrm{V}}_{1}=2\) litres and \({\mathrm{V}}_{2}=3\) litres separated by a p…

A container has two chambers of volumes \({\mathrm{V}}_{1}=2\) litres and \({\mathrm{V}}_{2}=3\) litres separated by a partition made of a thermal insulator. The chambers contains \({\mathrm{n}}_{1}=5\) and \({\mathrm{n}}_{2}=4\) moles of ideal gas at pressures \({\mathrm{p}}_{1}=1\mathrm{atm}\) and \({\mathrm{p}}_{2}=2\mathrm{atm}\), respectively. When the partition is removed, the mixture attains an equilibrium presšure of :