A temperature change requires as gain or loss of heat energy.
For what?It requires a heat gain for the water,but a heat loss for whatever the water is in contact with.
Heat
Condensation is typically considered an energy loss because it releases energy as heat when water vapor changes to liquid water. This energy is known as latent heat of condensation.
heat loss
These are exact opposities - heat gain is an increase in energy that results in an increased temperature of the material. Heat loss is a loss in energy that results in a decreased temperature of the material.
Melting is a process that requires heat to change a solid substance into a liquid, so it is a heat gain process. Heat is absorbed to break the bonds between the molecules in the solid and allow them to move more freely as a liquid.
Freezing ice is a process that involves heat loss. When liquid water turns into ice, heat escapes from the water, causing it to lose energy and lower in temperature.
NO Heat Loss , No Heat gain
Heat absorption is the process by which an object takes in heat energy from its surroundings, increasing its own temperature. Heat loss, on the other hand, is when an object releases heat energy to its surroundings, causing its temperature to decrease. Both processes are important for understanding how thermal energy is transferred between objects.
Freezing typically represents a loss of energy. When a substance freezes, its molecules lose kinetic energy and slow down, leading to the formation of a solid structure. This process releases energy in the form of heat.
Evaporation is considered an energy gain process because it requires energy input to break the bonds between liquid molecules to change them into vapor. This energy input comes from the surrounding environment, which leads to cooling of the remaining liquid.
Heat gain refers to the increase in temperature due to external factors like sunlight or machinery, leading to discomfort or overheating. Heat loss, on the other hand, is the decrease in temperature caused by factors like drafts or insufficient insulation, resulting in a drop in comfort and increased energy usage to maintain warmth. Both heat gain and heat loss can impact indoor environments and affect the efficiency of heating and cooling systems.