When 0.15 kg of ice at `0^(@)C` is mixed with 0.30 kg of water at `50^(@)C` in a container, the resulting temperature is `6.7^(@)C`. Calculate the heat of fusion of ice. `(s_(water) = 4186 J kg^(-1)K^(-1))`

Explanation

To solve the problem of calculating the heat of fusion of ice when it is mixed with water, we will follow these steps:

### Step 1: Identify the heat lost by water
The heat lost by the water as it cools down from its initial temperature to the final temperature can be calculated using the formula:

\[ Q_{\text{lost}} = m \cdot s \cdot \Delta T \]
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