"PV =nRT" hence,"n = PV \/RT"
First convert all units into SI units
P=25*101325Pa, T = 573K, V=0.9567M3 and R =8.314j/mol/k
"C2H4+H2=C2H6"
To get the number of moles of ethene, we find the value of n.
N=2533125*0.9567/8.314*573
N=508.70moles but theoretical molar mass of ethene =30.07g/mol
Hence theoretical yield of ethene =508.70*30.07 =15296.609g which is 15.30kg
%Yield="Actual yield\/theoretical yield*100"
%Yield =11/15.30*100=71.90%
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