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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
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoAn increase in temperature, increases the number of atoms with energy more than or equal to the activation energy. This causes an increase in the rate of reaction.
A decrease of activation energy (achieved by using a catalyst) will also increase the rate of reaction.
Wiki User
∙ 10y agowith no activation of energy there is no chemical reaction
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How do enzymes affect the activation of energy in chemical reactions?
they lower the activation energy.
What is the effect that enzymes have on certain chemical reactions in living things?
Enzymes lower the activation energy (or free energy of activation for the very scientific) of the chemical reactions they catalyse. The enzymes can make a reaction proceed much more quickly than it otherwise would by astronomical figures, e.g. 109 times! Enzymes don't affect the equilibrium position, but they do affect the rate.
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 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.
A chemical reaction that requires a net input of energy?
"Activation Energy reactions"; Endothermic reactions require energy.
How do enzymes affect the activation of energy in chemical reactions?
they lower the activation energy.
How do catalyst affect the energy reactions?
Catalysts doesn't affect the energy of reactions
What term describes energy that is required to get chemical reactions started?
Activation energy describes the energy that is required to get chemical reactions started.
Which term describes energy that is required to get chemical reactions started?
Activation energy describes the energy that is required to get chemical reactions started.
How is activation energy relates to the start of chemical reactions?
A chemical reaction begin only if the activation energy has a specific value.
How do catalysts affect energy of reactions?
by lowering the activation energy.
WHAT TERM DESCRIBES ENERGY THAT REQUIRES TO GET CHEMICAL REACTIONS STARTED?
Activation energy describes the energy that is required to get chemical reactions started.
Why is chemical energy needed in all chemical reactions?
To initiate a chemical reaction an activation energy is necessary.
Do catalysts lower the activation energy of chemical reactions?
Yes, they do.
How enzymes affect reactions?
Enzymes lower the activation energy required for reactions to occur
Is the activation energy for chemical reactions in living things high or low?
Activation energy of reaction is the same regardless if it is in living organism or in test tube. Yet, the energy of activation can be lowered if catalyst is present. In living things catalyst lower the energy needed for chemical reactions.
How does the additions of a catalyst affect the energy of activation of a chemical reaction?
A catalyst changes the reaction mechanism to one with a lower activation energy; activation energy is lowered when a catalyst is added
