Calorimetry: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Calorimetry. Understanding the underlying formula is key to arriving at the correct answer below:

Heat required to raise 1 g of ice at 0°C to water at 100°C is \(1 \times 80 + 1 \times 1 \times 100 = 180\text{ cal}\). Since 1 g steam releases \(540\text{ cal}\) upon complete condensation, only a fraction of the steam condenses, maintaining the final temperature at 100°C.