Question

When thermal energy is applied to ice, the ice’s temperature rises until 0°C and then stays the same for a period of time. In 1–2 sentences, explain why this takes place.(2 points)

Answer 1

As heat is applied the ice warms until it reaches its melting point (0°C). At 0°C additional energy is used as latent heat to break hydrogen bonds and convert solid to liquid, so the temperature stays constant until the phase change is complete.