The heat of neutralisation of strong acid and strong base is 57.0 kJ. The heat released when 0.5 mol of `HNO_3` is added to 0.2 mol of NaOH solution is:

Options

A. `57.0`k J
B. `11.40 kJ `
C. `28.5 kJ `
D. `34.9 kJ `

Answer

B

Explanation

0.2 mol of `HNO_3` reacts with 0.2 mol of NaOH
Heat released `=57.0xx0.2 = 11.40 kJ`