a liquid needs to release energy to freeze. a liquid becomes a solid because the molecules stop bouncing around so much and let off energy in the form of heat
Freezing water is an exothermic process because it releases heat energy as water changes from a liquid to a solid state. Heat is given off during the process of water molecules forming an orderly arrangement in ice.
A chemical reaction
During condensation, steam gives off heat energy to its surroundings. This heat energy is released as the steam cools down and transforms back into liquid water.
The freezing of ice is an exothermic reaction because while the water freezes it gathers "cold" and it liberates or releases heat. Enabling the water to freeze. Heat always flows from hot objects to cooler ones until everything is the same temperature.
exothermic reaction. This type of reaction releases energy to the surroundings as heat.
Light and heat are the main forms of energy given off by a campfire. The light is produced by the flame as it burns the fuel, while the heat is a byproduct of the chemical reactions happening during combustion.
It is Heat that is 'given off' by a chemical reaction.
helium and some neutrons
When energy is lost in an environment, it is typically given off as heat. This heat can contribute to increasing the overall temperature of the environment.
Energy is given off during exothermic reactions, where the system releases heat to the surroundings. Examples include combustion reactions, neutralization reactions, and some types of nuclear reactions.
Light and heat given off by the sun are forms of electromagnetic radiation. Light is in the form of visible light waves, while heat is in the form of infrared radiation. These forms of energy travel through space and reach Earth, providing warmth and allowing us to see during the day.
The friction creates the heat.