Question

DO THIS Q PLSS.....???​

Answer 1

energy required to break C2H2=601+850=1451

energy required to break 2H2=840

total energy in reactant=840+1451=2291

energy in productC2H6=349+(425×6)=349+2550=2890

change in enthalpy=-2890-2291=-599kj/mol

{hope it helps you}