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Activation energy is necessary for a chemical reaction to occur because?
Wiki User
∙ 11y ago
energy needs to be added to a molecular system to start the proccess
Wiki User
∙ 12y ago
Wiki User
∙ 11y agobreaking bonds requires energy.
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Why do you need a catalyst during a enzyme reaction?
Because catalyst decreases the activation energy needed to start a chemical reaction.
What is activation energy how is the rate constant of a reaction related to its activation energy?
In chemistry, activation energy is a term introduced in 1889 by the Swedish scientist Svante Arrhenius that means the minimum energy that must be input to a chemical system with potential reactants to cause a chemical reaction. Activation energy may also be defined as the minimum energy required to start a chemical reaction.The activation energy of a reaction is usually denoted by Ea and given in units of kilojoules per mole
The activation energy for the chemical reaction in living thing is high or low?
It is high because the enzymes in cells speed up the reactions by lowering the energy.
Is this statement true Catalysts make chemical reactions proceed faster by reducing the activation energy?
yes!. the way the reaction gets faster is because the catalyst absorbs the reactant particles on its surface and weakens their bonds. Reactants particles colliding with weaker bonds actually overcomes the activation energy faster as it is now lower. The only thing a catalyst changes in a chemical reaction is the activation energy, keeping in mind that the catalyst increases the rate of reaction in both forward and backward reaction.
A catalyst speeds up a reaction rate because it?
A catalyst speeds up a reaction rate because it lowers the activation energy. The activation energy is the amount of energy required to start a reaction. If less energy is needed, then the same amount of energy can react more times.
What do catalysts do to the activation energy of a chemical reaction?
A chemical catalyst is a substance that lowers the required activation energy of a reaction. The activation energy is the amount of energy required to "activate" or start a process, this can be in the form of many things, such as heat. A chemical catalyst can be seen as a kind of shortcut in a chemical process to speed things up. A catalyst can also be used to increase the activation energy, so that the reaction will slow down. This is useful for slowing down reactions that are normally too fast to witness.
Why do you need a catalyst during a enzyme reaction?
Because catalyst decreases the activation energy needed to start a chemical reaction.
Why it is necessary to Lowe rthe activation energy?
It speeds up/catalyzes the rate of reaction. Thus the agents are called catalysts (mainly enzymes and transition metals). The existence of life depends on controlled chemical reactions, and if the activation energy is not lowered then much more energy is required to carry out the reaction. These chemical agents provide a partial substitute for energy because energy has limited availability.
What is activation energy and how do enzymes effect it?
There is no straight forward relation between enzyme and activation energy because although energy of reaction is fixed and is governed by laws of chemistry but for biochemical reactions concentration of enzyme and conc. of substrate affect rate of reaction and energy, but in general enzymes decrease activation energy of reaction.
How does the interaction between an enzyme and its substrate change a chemical reaction?
Enzymes speed up the chemical reactions because when it forms a complex with its substrates, it reduces the activation energy that the reaction needs to proceed. Remember that the reaction itself is not altered, only the rate of reaction, and that the enzyme is not used or altered in the reactions.
What is the minimum amount of energy needed to start a chemical reaction?
activation energy ( I know it is right because it is in my science book)
Activation energy barriers?
The activation energy is the amount of energy needed to start a reaction. If the reactants have less than that amount the reaction will not occur. In this way it acts as a barrier that prevents a reaction unless there is enough energy to break it.
How do enzymes speed up chemical reactions?
Enzymes lower the activation energy of a chemical reaction.
What is activation energy how is the rate constant of a reaction related to its activation energy?
In chemistry, activation energy is a term introduced in 1889 by the Swedish scientist Svante Arrhenius that means the minimum energy that must be input to a chemical system with potential reactants to cause a chemical reaction. Activation energy may also be defined as the minimum energy required to start a chemical reaction.The activation energy of a reaction is usually denoted by Ea and given in units of kilojoules per mole
By decreasing this you can speed up a chemical reaction?
Decrease the activation energy to speed up a chemical reaction.
How does the interaction between an enzyme and its substrates change chemical reaction?
Enzymes speed up the chemical reactions because when it forms a complex with its substrates, it reduces the activation energy that the reaction needs to proceed. Remember that the reaction itself is not altered, only the rate of reaction, and that the enzyme is not used or altered in the reactions.
How does an interaction between an enzyme and its substrates change a chemical reaction?
Enzymes speed up the chemical reactions because when it forms a complex with its substrates, it reduces the activation energy that the reaction needs to proceed. Remember that the reaction itself is not altered, only the rate of reaction, and that the enzyme is not used or altered in the reactions.
