From the surroundings. From Wikipedia: "...a process or reaction in which the system absorbs energy from its surroundings in the form of (usually, but not always) heat."
Endothermic reaction. In an endothermic reaction, energy is absorbed by the system from the surroundings in the form of heat, causing the surroundings to cool down.
Endothermic, if the energy is in the form of heat.
An endothermic reaction is one that uses chemical energy.
An exothermic reaction releases heat energy, while an endothermic reaction absorbs heat energy. In an exothermic reaction, the surroundings get warmer, whereas in an endothermic reaction, the surroundings get cooler.
Endothermic reactions are chemical reactions that absorb free energy, typically in the form of heat. These reactions require an input of energy to proceed. Examples include photosynthesis and the melting of ice.
The difference between endothermic and exothermic energy is that exothermic energy is the reaction that releases energy and endothermic is the reaction in ehich energy is absorbed.
endothermic
Endothermic-take in Heat, as opposed to exothermic which gives off heat-like a fire or explosion.
Endothermic reaction. In an endothermic reaction, energy is absorbed by the system from the surroundings in the form of heat, causing the surroundings to cool down.
Endothermic, if the energy is in the form of heat.
endothermic reaction
Endothermic. Any reaction that ABSORBS energy is classified as endothermic.
An endothermic reaction is one that uses chemical energy.
Absorbing energy from the surroundings is endothermic. (The opposite - releasing energy to the surroundings - is exothermic).
endothermic reaction
An example of a chemical reaction that requires a net input of energy is photosynthesis. In this process, plants use energy from sunlight to convert carbon dioxide and water into glucose and oxygen. The energy from sunlight is required to drive this reaction and is absorbed by chlorophyll in plant cells.
An exothermic reaction releases heat energy, while an endothermic reaction absorbs heat energy. In an exothermic reaction, the surroundings get warmer, whereas in an endothermic reaction, the surroundings get cooler.