Question

The calorific valueat STP is 12-78 KJ / L. Hence approximate standard enthalpy of formation of
H₂ (g)
H₂O is
1 143 KJ
(4) +286K J
(2) 28 6
kJ (3) Zero
approximate standard enthalpy op of formation of​

Answer 1

The calorific valueat STP is 12-78 KJ / L. Hence approximate standard enthalpy of formation of

H₂ (g) H₂O is (4) +286K J.