Question

Calculate AH for the following reaction.

C2H4(g) + H2(g) → C2H6(g)
(ΔHf° for C2H4(g) = 52.5 kJ/mol; ΔHf° for C2H6(g) = -84.7 kJ/mol)
a. -137.2 kJ
b. -32.2 kJ
c. 32.2 kJ
d. 137.2 kJ

Answer 1

a.-137.2 kJ

Step-by-step explanation:

If the first example symbol used is addition you can copy the plus and follow it how to solve the next!And also if the negative or positive sign.