Question

One mole of a certain gas is contained in a vessel of volume V = 0.250 l. At a temperature T₁ = 300 K the gas pressure is p₁ =  90 atm, and at a temperature T₂ = 350 K the pressure is p₂ = 110 atm. Find the Van der Waals parameters for this gas.

Answer 1

Using T₁ = 300K, p₁ = 90 atms, T₂ = 350 K P₂ = 110 atm, V = 0.250 litre, a = 1.87 atm. litre²/mole², b = 0.045 litre/mole