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What are differences between endothermic and exothermic reactions examples?
Wiki User
∙ 12y ago
The main differences between exothermic reactions and endothermic reactions are:
Exothermic reactions are reactions that give off energy (light, electrical or mainly heat), causing the surroundings to warm up. Endothermic reactions are reactions that absorb energy, causing the surroundings to cool down.
The products of an exothermic reaction have less energy, or less total enthalpy, than of it's reactants. This is due to the reactants containing more stored energy because energy from external sources is not required. This also gives the products more stability because in order to achieve a reversible reaction and break the chemical bonds of the products, you will need to apply more energy to it.
The opposite is for endothermic reactions. The products of the reaction have a greater total enthalpy of the reactants, causing the reactants stored energy to decrease. This produces less stable products that need less energy to break their bonds in a reversible reaction.
Finally most exothermic reactions are spontaneous, where as most endothermic reactions are not spontaneous as they generally need energy applied to them before they start.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoExamples for exothermic reaction:
- fermentation is a example of exothermic reaction
- combustion reaction of fuels
- adding concentrated acid to water
- most polymerisation reaction
- burning of substance
- photosynthesis
- a chemical cold pack consisting primarily of ammonium nitrate and water
- evaporation of water
- preparation of ozone by passing silent electric discharged through oxygen
Wiki User
∙ 11y agoEndothermic reactions are chemical reactions that use heat as part of the reactant. Heat is absorbed into the reaction in order for it to continue.
Exothermic reactions are chemical reactions that release heat as a product of the reaction.
Wiki User
∙ 11y agodissolution of glucose or ammonium chloride in water
Wiki User
∙ 6y ago1. Exothermic reaction: CH4 + 2 O2 = CO2 + 2 H2O
2. Endothermic reaction: MgCO3----------MgO + CO2
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Examples of endothermic and exothermic reactions?
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 & ironEndothermic 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
What are some physical endothermic phenomenons?
Some examples of exothermic reactions are melting ice cubes, water evaporation, and baking bread. An endothermic reaction occurs when heat is absorbed from the surrounding.
What is the type of chemical reaction in which heat energy is absorbed?
Endothermic reactions.Endo- means 'inside' which is where the energy ends up.Exothermic reactions give off energy. Exo- means 'outside'. Think that a spider sheds an 'exo'skeleton, or a skin on the outside.
What is the difference between endothermic and exothermic And give examples?
Chemical reactions that release energy in the form of heat, light, or sound are called exothermic reactions. Example: Mixture of sodium and chlorine to yield table salt In other words, combination reactions are exothermic. Reactions that absorb energy or require energy in order to proceed are called endothermic reactions. For example: In the process of photosynthesis, plants use the energy from the sun to convert carbon dioxide and water to glucose and oxygen.
What chemical reaction release thermal energy?
only nuclear reactionsChemical reactions that release free energy are called exergonic reactions. Fire and cellular respiration are examples of exergonic reactions.
Examples of endothermic and exothermic reactions?
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 & ironEndothermic 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
What are some examples of endothermic equations and exothermic equations?
Exothermic reactions give out heat. some examples of exothermic reactions are : 1)burning fuel in a fire 2)the addition of acid to water 3)the thermite reaction(this one is quite a sight) 4)the haber process of producing ammonia Endothermic reactions take in heat from their environment. some examples of endothermic reactions are: 1)an ice cube melting 2)depressurising a can(responsible in part why deodorant feels cold) 3)dissolving ammonium nitrate in water 4)decomposition of mercury (II) oxide(this requires a lot of heat)
What are the examples of endothermic exothermic reactions?
Examples for exothermic reaction:fermentation is a example of exothermic reactioncombustion reaction of fuelsadding concentrated acid to watermost polymerisation reactionburning of substanceexamples of endothermic reaction photosynthesisa chemical cold pack consisting primarily of ammonium nitrate and waterevaporation of waterpreparation of ozone by passing silent electric discharged through oxygen
What are some physical endothermic phenomenons?
Some examples of exothermic reactions are melting ice cubes, water evaporation, and baking bread. An endothermic reaction occurs when heat is absorbed from the surrounding.
What are some examples of endothermic reactions that are endothermic as well?
All ENDOthermic reactions are of course ENDOthermic by themselves, aren't they?
What is the type of chemical reaction in which heat energy is absorbed?
Endothermic reactions.Endo- means 'inside' which is where the energy ends up.Exothermic reactions give off energy. Exo- means 'outside'. Think that a spider sheds an 'exo'skeleton, or a skin on the outside.
What is a chemical reaction that doesn't releases energy?
A chemical reaction that doesn't release energy is an endothermic reaction. There are few reactions that are endothermic compared to exothermic reactions (reactions that release energy as heat). Endothermic reactions actually take in heat from the environment and that is why you see a temperature drop. Examples of endothermic reactions: Electrolysis A reaction between ethanoic acid and sodium carbonate A thermal decomposition reaction (as you put heat into the reaction to break something down) Hope this helped.
What is the difference between endothermic and exothermic And give examples?
Chemical reactions that release energy in the form of heat, light, or sound are called exothermic reactions. Example: Mixture of sodium and chlorine to yield table salt In other words, combination reactions are exothermic. Reactions that absorb energy or require energy in order to proceed are called endothermic reactions. For example: In the process of photosynthesis, plants use the energy from the sun to convert carbon dioxide and water to glucose and oxygen.
What is the name of the type of reaction that produces heat?
exothermic reactions1) Combustion: A combustion reaction is when oxygen combines with another compound to form water and carbon dioxide. These reactions are exothermic, meaning they produce heat. An example of this kind of reaction is the burning of napthalene:C10H8 + 12 O2---> 10 CO2 + 4 H2O
What is 2 examples or an exothermic reaction?
Burning wood is exothermic and photosynthesis is endothermic.
Does endothermic or exothermic get colder?
Yeah, endothermic means that the heat is basically sucked out of it... or released while in an exothermic reaction, the heat is gathered or taken in. Take for example hot gas in a glass container: if it is cooled down of placed into a tub of ice, the gas will condense and the gas forms into droplets of liquid on the sides of the container and then drops to the bottom once there's enough of it.
What is it called when energy is released or absorbed during chemical change called?
exothermic reaction When energy is released in a chemical reaction it is called an exergonic reaction. One example of an exergonic reaction is cellular respiration in both plants and animals. It is represented by a negative change in free energy (-∆G). An exothermic reaction is only the release of energy as heat, so the more correct answer would be an exergonic reaction, which is the release of energy.
