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Exothermic reactions give out energy overall. Here are some exothermic reactions:
- Combustion of fuels such as hydrogen & methane
- Neutralisation of an acid by an alkali
- Reaction between sulphur & iron
Endothermic reactions take in energy overall. Here are some endothermic reactions:
- Reactions involved in cooking
- The thermal decomposition of calcium carbonate
- Photosynthesis in which plants use sunlight, carbon dioxide & water to make their own food
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TaigaAn example of an endothermic reaction is the reaction between ammonium nitrate and water, which absorbs heat from the surroundings, causing the mixture to feel cold to the touch. An example of an exothermic reaction is the combustion of methane gas with oxygen, which releases heat into the surroundings, causing the surroundings to feel warmer.
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Are Ombustion reactions exothermic or endothermic?
Combustion reactions are exothermic.
What is the opposite of exothermic?
The opposite of exothermic is endothermic. Exothermic reactions are those which give off energy in the form of heat. Endothermic reactions require energy.
How do you recognize exothermic and endothermic reactions?
This question is poorly worded. As worded--No. You can DESCRIBE exothermic or endothermic reactions on graphs, however.
Is reactants to products endothermic?
Not always. In a chemical reaction, the process can be either endothermic or exothermic. Endothermic reactions absorb heat from the surroundings, while exothermic reactions release heat into the surroundings. The specific reaction will determine whether it is endothermic or exothermic.
How are exothermic and endothermic reactions different?
Exothermic reactions release heat to the surroundings, causing the surroundings to increase in temperature. Endothermic reactions absorb heat from the surroundings, causing the surroundings to decrease in temperature.
