If 2.0 kg of water at 0°C is to be vaporized, how much heat must be added?

Name: If 2.0 kg of water at 0°C is to be vaporized, how much heat must be added?
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Quizplus · Accepted Answer

The heat required to vaporize water is calculated using the formula Q = m * Lv, where Lv (latent heat of vaporization) for water is 540 kcal/kg. For 2.0 kg of water, Q = 2.0 kg * 540 kcal/kg = 1080 kcal, which is equivalent to 1280 kcal when considering the energy needed to first bring the water to boiling point.

If 20 Kg of Water at 0°C Is to Be Vaporized