For the following neutralization reaction:

MgO(s) + 2HCl(aq) → MgCl₂(aq) + H₂O(l)

How does the enthalpy change of the reaction compare with the standard enthalpy of neutralization
of a strong acid and a strong base (−57.33 kJ mol⁻¹)?

1. Equal to 57.33 kJ mol⁻¹

2. Equal to −57.33 kJ mol⁻¹

3. Greater than 57.33 kJ mol⁻¹

4. Less than 57.33 kJ mol⁻¹