Question

A 5 L vessel contains 1.4 g of nitrogen. When heated to 1800 K, 30% of molecules are dissociated into atoms. Calculate the pressure of the gas at 1800 K.

Answer 1

∴ Total number of moles = 0.035 + 0.030 = 0.065 i.e., n = 0.065 mol, V = 5L, T - 1800 K, P = ? 

Applying PV = nRT, we get,