An endothermic reaction is any chemical reaction that absorbs heat from its environment.
Table of Contents
Exothermic, Endothermic, & Chemical Change
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What are chemical reactions that absorb energy called quizlet?
Chemical reactions that absorb energy, usually in the form of heat, are called endothermic reactions.
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Where does absorbed energy go in chemical reaction?
For an endothermic chemical reaction to proceed, the reactants must absorb energy from their environment to be converted to products. In an exothermic reaction, the energy of the products is lower than the energy of the reactants, hence is energetically downhill, shown in Figure 9.5.
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Does chemical reaction absorb or release energy?
A particular chemical reaction absorbs energy or releases energy depending on the number and types of bonds broken and formed during the reaction. In many chemical reactions, the energy absorbed and released is in the form of heat. A chemical reaction in which heat is released is called an exothermic reaction.
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What is it called when a chemical reaction absorbs energy?
An endothermic reaction is any chemical reaction that absorbs heat from its environment. The absorbed energy provides the activation energy for the reaction to occur.
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What are chemical reactions that absorb heat called quizlet?
reactions that absorb heat are called endothermic. In an endothermic reaction, the energy released as new bonds are formed in the products is less than the energy required to break the bonds in the reactants.
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Which chemical reactions absorb energy and which release energy?
Chemical reactions that release energy are called exothermic. In exothermic reactions, more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants. Chemical reactions that absorb (or use) energy are called endothermic.
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Why is energy absorbed in chemical reactions?
Energy is absorbed to break bonds, and energy is evolved as bonds are made. In some reactions the energy required to break bonds is larger than the energy evolved on making new bonds, and the net result is the absorption of energy. Such a reaction is said to be endothermic if the energy is in the form of heat.
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What happens when energy is absorbed?
When absorbed by a substance, heat causes inter-particle bonds to weaken and break which leads to a change of state (solid to liquid for example). Heat causing a phase change is NOT sufficient to cause an increase in temperature.
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Where does the energy absorbed in an endothermic chemical reaction go?
Answer and Explanation: The thermal energy absorbed in an endothermic chemical reaction is converted to chemical energy stored in the bonds between the atoms in a molecule. The products of the reaction therefore have higher enthalpy than the reactants.
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Where is energy absorbed or released?
Energy is released in exothermic reactions whereas energy is absorbed in endothermic reactions. Examples of exothermic reactions where energy is released include combustion, rain or ice formation, rusting iron, and explosions.
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Does chemical energy release energy?
Chemical energy is contained within the bonds of chemical compounds at a molecular level. When there’s a chemical reaction between the molecules of chemical compounds, a new substance may form, and energy may be released.
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Why energy is absorbed in chemical reactions?
Energy is absorbed to break bonds, and energy is evolved as bonds are made. In some reactions the energy required to break bonds is larger than the energy evolved on making new bonds, and the net result is the absorption of energy. Such a reaction is said to be endothermic if the energy is in the form of heat.
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