When a definite mole of different gases are heated from 20°C to 40°C at constant pressure, their vol — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

The change in volume for any gas is given by δ V = n * R * (δ T) / P. Since the number of moles (n), pressure (P), and temperature change (δ T = 20 K) are identical for all the gases, the change in volume is independent of the nature of the gas. Thus, their volume increases by the same extent.