Hydrogenation of double and triple bonds is an important industrial process. Calculate (in kJ/mole) the standard enthalpy change ΔH° for the hydrogenation of ethyne (acetylene) to ethane. Just enter a number (no units).

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

Thus, the standard enthalpies of formation are:

Hence, the standard enthalpy of reaction becomes:

Best regards.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8