Nate Core Practice Test 2026 - Free Practice Questions and Study Guide

Latent heat refers specifically to the amount of heat energy that is absorbed or released by a substance during a phase change without causing a change in temperature. For instance, when ice melts to form water, it absorbs heat from the environment, but its temperature remains constant at 0°C until the entire ice mass has transformed into water. The same principle applies during boiling, where heat is absorbed to convert water into steam at 100°C without any increase in temperature until the phase change is complete.

This concept is crucial in understanding various natural phenomena and in applications such as refrigeration, heating systems, and climate dynamics, where energy transfer occurs without a temperature change across different states of matter. The correct choice captures the essence of latent heat, highlighting its role in energy transfer during phase changes—this is not the case with the other options, which describe aspects of thermal energy in different contexts.