Question

Calculate the pressure exerted by 8.5 g of NH₃ contained in a 0.5 L vessel at 300 K. For ammonia a = 4.0 atm L² mol^-2 and b = 0.036 L mol^-1 

Answer 1

V =0.5 L , T = 300 K 

 n= 8.5/17 = 0.5 mol 

 ( P + an² /V² ) (V – nb) = nRT 

 Putting values , we have 

 P = 21.51 atm