Calculate the entropy change in the melting of 1 kg of ice at `0^(@)C` in SI units. Heat of funsion of ice = 80 cal `g^(-1)`.

Explanation

To calculate the entropy change in the melting of 1 kg of ice at 0°C, we will follow these steps:

### Step 1: Convert the heat of fusion from calories to joules
The heat of fusion of ice is given as 80 cal/g. To find the total heat of fusion for 1 kg of ice, we first convert kilograms to grams:

\[ 1 \text{ kg} = 1000 \text{ g} \]
...