How much heat is required to change 456 g of ice at -25.0°C into water at 25.0°C? The specific heat of ice is 2090 J/(kg K) and the latent heat of fusion of water is 33.5 × 10⁴ J/kg. A) 224 kJ B) 153 kJ C) 112 kJ D) 71.5 kJ E) 72.5 kJ

Question

Quizplus · Accepted Answer

The total heat required includes heating the ice from -25°C to 0°C, melting the ice, and then heating the water from 0°C to 25°C. Calculating each step and summing them gives approximately 224 kJ.

How Much Heat Is Required to Change 456 G of Ice