`150 mL` of `0.5N` nitric acid solution at `25.35^(@)C` was mixed with `150 mL` of `0.5 N` sodium hydroxide solution at the same temperature. The final temperature was recorded to be `28.77^(@)C`. Calculate the heat of neutralisation of nitric acid with sodium hydroxide.

Explanation

To calculate the heat of neutralization of nitric acid with sodium hydroxide, we will follow these steps:

### Step 1: Calculate the number of equivalents of H⁺ and OH⁻ ions
Given:
- Volume of nitric acid solution = 150 mL
- Normality of nitric acid (HNO₃) = 0.5 N
- Volume of sodium hydroxide solution = 150 mL
- Normality of sodium hydroxide (NaOH) = 0.5 N
...