Question

Assume 1.0 kg of ice at 0 °C starts to melt. It absorbs 300 kJ of energy by heat. What is the temperature of the water afterwards?

a) 0 °C
b) 10 °C
c) 50 °C
d) 100 °C

Answer 1

When 1.0 kg of ice at 0 °C starts to melt, it absorbs 300 kJ of energy by heat. The temperature of the water afterwards will still be 0 °C.

Step-by-step explanation:

When 1.0 kg of ice at 0 °C starts to melt, it absorbs 300 kJ of energy by heat.

During the process of melting, the temperature remains constant at 0 °C

Therefore, after absorbing the 300 kJ of energy, the temperature of the water will still be 0 °C.