Question

The absolute enthalpy of neutralization of the reaction,
`MgO(s)+2HCl(aq.)+H_(2)O(l)` will be
A. `-57.33` kJ `mol^(-1)`
B. greater than -57.33 kJ `mol^(-1)`
C. less than -57.33 kJ `mol^(-1)`
D. 57.33 kJ `mol^(-1)`

Answer 1

Correct Answer - C
Since MgO is an oxide of a weak base, hence its neutralisation will evolve the heat less than 57.33 kJ `mol^(-1)`