Question

At 298 K, which of the following reactions represent(s) enthalpy of formation?

CO(g) + 2 H2(g) CH3OH()

2 C(graphite) + 3 H2(g) + C2H5OH(1) O2(g)

C2H2(g) + 2 Co(g) + H20(1)

Both (1) and (3)

Answer 1

Answer:

Both 1 and 3 is the right answer