Bond enthalpy of C - H bond is 350 kJ/mol. Calculate the bond enthalpy of C-=C bond in C_(2) H_(2). 2C_((s)) + H_(2(g)) to C_(2) H_(2(g)), Delta H= 225 kJ/mol 2X_((s)) to 2C_((g)) ,""DeltaH= 330 kJ/mol H_(2(g)) to 2H_((g)) , ""DeltaH= 330 kJ/mol

Bond enthalpy of C - H bond is 350 kJ/mol. Calculate the bond enthalpy

1.	Bond enthalpy of C - H bond is 350 kJ/mol. Calculate the bond enthalpy of C-=C bond in C_(2) H_(2). 2C_((s)) + H_(2(g)) to C_(2) H_(2(g)), Delta H= 225 kJ/mol 2X_((s)) to 2C_((g)) ,""DeltaH= 330 kJ/mol H_(2(g)) to 2H_((g)) , ""DeltaH= 330 kJ/mol
Answer» 1165 kJ/mol 837 kJ/mol 865 kJ/mol 815 kJ/mol Solution :`DELTA H + 1410 + 330 - (350xx 2)- Delta H _(C -= C) = 255` `therefore Delta H_(C -= C) = + 815` kJ/mol