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ThermodynamicsMCQ

The standard enthalpy of formation, ∆Hºf, of the compound MgO(s) is equal to the standard enthalpy cThermodynamics Chemistry Question

Question

The standard enthalpy of formation, ∆Hºf, of the compound MgO(s) is equal to the standard enthalpy change for which reaction?

A.

Mg(s) + ½ O2(g) → MgO(s)

✓ Correct
B.

2 Mg(s) + O2(g) → 2 MgO(s)

C.

Mg(g) + O(g) → MgO(s)

D.

Mg2+(aq) + O2-(aq) → MgO(s)

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