ENDOTHERMIC Meaning and
Definition
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Endothermic is an adjective used to describe a chemical reaction or process that absorbs or requires heat from its surrounding environment, resulting in a decrease in temperature. It is derived from the Greek words "endo" meaning "within" and "therm" meaning "heat." In an endothermic reaction, the reactants have lower energy than the products, hence, energy is absorbed in order for the reaction to proceed.
Endothermic reactions are characterized by a decrease in temperature due to the absorption of heat energy. This heat absorption occurs as the reactant molecules or ions break their bonds, which requires energy input. Examples of endothermic reactions include the evaporation of water, the melting of ice into liquid water, and the reaction between citric acid and baking soda, which is commonly used in baking to create carbon dioxide gas.
In addition to chemical reactions, endothermic processes also occur in physical changes, such as when a solid changes into liquid or a liquid changes into gas. Endothermic reactions and processes are important in various industries and applications, including refrigeration systems, cooking, and the production of certain chemicals. Opposite to endothermic reactions are exothermic reactions, which release energy to the surroundings, thus resulting in an increase in temperature.
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1. Noting chemical compounds during the formation of which there is absorption of heat. 2. Noting the production of heat within an organism.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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Etymology of ENDOTHERMIC
The word "endothermic" comes from the combination of two Greek roots: "endo" meaning "inside" and "therm" meaning "heat". The word was first coined in the 19th century and is derived from the larger concept of "endothermy" which refers to the ability of certain organisms to regulate and maintain their body temperature internally. In the context of chemistry, "endothermic" describes a process or reaction that absorbs heat from the surroundings.
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