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What happens to the rate constant as activation energy increase?
Wiki User
∙ 7y ago
The rate constant decreases.
Cullen Fay
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How does activation energy affect chemical reactions?
The Arrhenius equation is: Ea = -RT ln(k/A) where Ea - activation energy R - universal gas constant ln - logarithm k - speed constant T - temperature in kelvins
Can a reaction have zero activation energy?
if a reaction is carried out at constant temperature to completion it will have a zero activation energy.
Does a catalyst decrease or increase the activation energy required?
The catalyst decrease the needed activation energy.
What happens to the kinetic energy when you increase the speed but keep the mass constant?
the speed will make the kinetic energy smaller.
How does concentration affect activation energy?
Because the concentration is directly proportional to the rate of reaction (the rate will increase but k will remain the same), with an increase in concentration the activation energy will stay because the activation energy does not account for the concentration.
What happens when activation energy is in presence of an enzyme?
the energy decreases
When the catalyst bonds with the activated complex what is its effect on the activation energy and the rate and nbsp?
The activation energy is lower and the reaction rate increase.
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
Do Enzymes increase or decrease the Activation Energy of a Chemical Reaction?
decrease
Do catalysts decrease or increase energy required to begin a reaction?
Catalysts decrease activation energy.
Why is the activation energy of an endothermic reaction is at least as large as its enthalpy?
In an endothermic reaction the energy of the products is higher than the energy of the reactants. The activation energy also is an energy increase. The activation energy must be at least as high as the products energy or the reaction would never take place. Thus, the activation energy must be at least as large as the enthalpy in an endothermic reaction.
Will affect the rate of the constant according to the Arrhenius equation changing which factors?
Temperature and activation energy
