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The amount of energy a reaction needs to take place is called activation energy. When this much energy is present, a chemical reaction can occur.

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What is the minimum amounth of energy required for a reaction occur?

The minimum amount of energy required for a reaction to occur is called the activation energy. This energy is needed to break the bonds in the reactant molecules and initiate the chemical reaction. Once the activation energy is overcome, the reaction can proceed on its own.


What is the opposite of a reaction releasing energy?

A reaction releasing energy is called an exergonic reaction, so the opposite of the would be a reaction that needs energy to take place, called an endergonic reaction. These are also known as exothermic and endothermic reactions.


What role does activation energy play in a chemical reaction, and how can it be represented on a diagram?

Activation energy is the minimum amount of energy required for a chemical reaction to occur. It acts as a barrier that must be overcome for the reaction to proceed. In a diagram, activation energy is typically represented as the energy difference between the reactants and the transition state of the reaction. This barrier must be crossed for the reaction to take place.


Is Activation energy the minimum energy needed for a reaction to start?

No, the opposite. The lower the activation barrier the faster the reaction goes. That is how a catalyst speeds up the reaction: by lowering the activation energy.See the Web Links for more information.


How would a catalyst change the reaction energy diagram?

The overall enthalpy change in a common reaction would not change. Only the path to get there would change. A catalyst basically lessens the activation energy required to get the reaction to take place.

Related Questions

What can reduce the amount of energy needed for a chemical reaction to take place?

adding a catalyst to the reaction


What is the minimum amounth of energy required for a reaction occur?

The minimum amount of energy required for a reaction to occur is called the activation energy. This energy is needed to break the bonds in the reactant molecules and initiate the chemical reaction. Once the activation energy is overcome, the reaction can proceed on its own.


Why activation energy is referred in the definition of enzymes?

The chemical term activation energy is the amount of energy required for a chemical reaction to take place. For more information about different chemical contact a scientists or science professor in one's area.


What is the opposite of a reaction releasing energy?

A reaction releasing energy is called an exergonic reaction, so the opposite of the would be a reaction that needs energy to take place, called an endergonic reaction. These are also known as exothermic and endothermic reactions.


What role does activation energy play in a chemical reaction, and how can it be represented on a diagram?

Activation energy is the minimum amount of energy required for a chemical reaction to occur. It acts as a barrier that must be overcome for the reaction to proceed. In a diagram, activation energy is typically represented as the energy difference between the reactants and the transition state of the reaction. This barrier must be crossed for the reaction to take place.


Is more energy required for a chemical reaction in the absence of an enzyme?

Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.


What bonds of the reactants are broken in this reaction?

Energy is the key for any reaction to take place. To break the bonds of a substance, a fixed amount of energy is required which is called bond energy. For some substances the bond energy is low and they do not require external energy and start reaction on their on there own whereas for some substances we have to provide external energy for the reaction to take place.


Why is respiration an exothermic reaction?

Respiration is considered as exothermic reaction because during the process,oxidation of glucose takes place which generates large amount of heat energy.


The smallest amount of energy needed to start a chemical reaction is called?

Technically, it isn't "heat" that makes a chemical reaction happen. "Heat" is merely the flow of energy from one place to another. It is the energy itself that causes a reaction to occur. As an increase in temperature occurs, there is an increase in the energy in a group of molecules by making them mover around faster and bum into each other more. This energy is called "Activation energy", and is defined as the amount of energy required to make the reaction start and carry on spontaneously. Higher activation energy implies that the reactants need more energy to start than a reaction with a lower activation energy. With that being said, activation energy is the answer


What Activation energy play in a chemical reaction?

It indicates how likely a reaction might be, but there are no hard rules. Low activation energy indicates that the reaction is likely to take place spontaneously. In most cases, the reaction must be exothermic as well. There are lots of exceptions to these simple rules. For any reaction to occur, the reactants must gain at least the activation energy.


Can a chemical reaction reaction take place in which energy is neither absorbed or released?

no


Do enzymes increase the activation energy of biochemical reactions?

Enzymes speed up a chemical reaction by lowering the energy required for a reaction to procede, the Activation Energy (Ea). The overall change in energy of the reaction is unchanged, so the net amount of energy released in a reaction is not increased.