(a)0.0189litremol−1,2.095litre2atm,0.05086litreatmK−1mol−1(b)189litremol−1,0.95litre2atm,0.05086litreatmK−1mol−1(C)0.0189litremol−1,20.95litre2atm,5.086litreatmK−1mol−1(d)noneofthese