Heat liberated when `100 mL` of `1 N NaOH` is neutralised by `300 mL` of `1 N HCl`

Options

A. `22.92 kJ`
B. `17.19 kJ`
C. `11.46 kJ`
D. `5.73 kJ`

Answer

D

Explanation

`100 mL` of `1 N NaOH` will be exactly neutralised with `100 mL` of `1 N HCl`.
`1000 mL` of `1 N NaOH` react with `1000 mL` of `HCl` to give `57.3 kJ` of heat
`:. 100 mL` of `1 N NaOH` will react with `100 mL` of `1 N HCl` to give `(57.3)/(1000)xx100=5.73 kJ` of heat.