Physics - Heat & Thermo Question with Solution | TestHub

A closed vessel contains$0.1$mole of a monoatomic ideal gas at$200\text{ K}$. If$0.05$mole of the same gas at$400 \mathrm{K}$is added to it, the final equilibrium temperature (in$\text{K}$) of the gas in the vessel will be close to ______