Calculate the entropy change when 20.0 g of ice changes to liquid water at 0°C. The heat of fusion is `80.0 cal g^(-1)`.

Explanation

To calculate the entropy change when 20.0 g of ice changes to liquid water at 0°C, we can follow these steps:

### Step 1: Understand the formula for entropy change
The change in entropy (ΔS) can be calculated using the formula:
\[ \Delta S = \frac{Q}{T} \]
where:
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