For a fixed amount of vanderwaal gas, when a graph of Z vs P was plotted at very high pressure, slope was observed to be 0.01 atm − 1 . At the same temperature if a graph is plotted between PV vs P fo

Question

For a fixed amount of vanderwaal gas, when a graph of Z vs P was plotted at very high pressure, slope was observed to be 0.01 atm − 1 . At the same temperature if a graph is plotted between PV vs P for 2 moles of the gas then y-intercept is formed to be 40 atm -litre. Calculate excluded volume (in litres) for 20 moles of the vanderwaal gas?

TestHub · Accepted Answer

At very high P, Z = 1 + RT P b ​ RT b ​ P V n RT RT b ​ = 0.01 a t m − 1 = n RT + n P b = 40 = 20 a t m − l i t re = 0.2 L / m o l ​ For 20 moles, the excluded volume is 20 b = 4 L .

Chemistry - Real Gas Question with Solution | TestHub

Doubts & Discussion