Which heat is removed or added to cause a change in state without change in temperature?

Latent heat refers to the energy absorbed or released during a change of state of a substance, such as from solid to liquid (melting) or from liquid to gas (vaporation), without any change in temperature. This is crucial in the processes of phase transitions, where energy is required to break intermolecular bonds without resulting in a temperature increase for the substance undergoing the change.

For instance, when ice melts to water, it absorbs latent heat from the environment, but the temperature remains at 0 degrees Celsius until all the ice has melted. Similarly, when water is converted into steam, it absorbs latent heat without a rise in temperature until the phase change is complete. This concept is fundamental in various applications, including refrigeration and HVAC systems, as it allows for efficient energy transfer during phase changes.

The other types of heat mentioned do not fit this definition. Sensible heat refers to the heat exchanged that causes a change in temperature without a change in state. Radiant heat involves the transfer of energy via electromagnetic waves, generally resulting in temperature changes. Superheat is the additional heat used to raise the temperature of a gas beyond its boiling point at a given pressure, thus also affecting the temperature. Thus, in the context of phase changes without a