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What statements about activation energy is correct?
Activation energy is the minimum amount of energy required for a chemical reaction to occur. An increase in activation energy leads to a decrease in reaction rate. Catalysts lower the activation energy required for a reaction to proceed, increasing the reaction rate. Activation energy does not affect the overall energy change of a reaction, only the speed at which it occurs.
What are three sources of activation energy?
Heat: Increasing the temperature of a reaction provides molecules with more kinetic energy, enabling them to overcome the activation energy barrier. Catalysts: Catalysts lower the activation energy required for a reaction, speeding up the rate of the reaction without being consumed themselves. Light: Photons can provide energy to molecules, allowing them to reach the activation energy required for the reaction.
What most likely accounts for the difference between curved a and curve b on the energy diagram?
The reaction described by curve B is occurring with a catalyst.
Is kinetic energy a source of activation energy?
No, kinetic energy is not a source of activation energy. Activation energy is the minimum amount of energy required to start a chemical reaction, while kinetic energy is the energy of motion possessed by an object.
What most likely accounts for the difference between curve A and curve B on the energy diagram?
The difference between curve A and curve B on an energy diagram is most likely due to the activation energy required for the reaction. Curve A likely represents a reaction with a higher activation energy, resulting in a slower reaction rate compared to curve B, which represents a reaction with a lower activation energy and a faster reaction rate.
How do enzymes work what do they lower?
Enzymes function when they lower the activation energy. That means it takes less energy for the reaction to work.
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
Do catalysts lower the activation energy of chemical reactions?
Yes, catalysts lower the activation energy of chemical reactions by providing an alternative reaction pathway that has a lower activation energy. This allows the reaction to proceed at a faster rate under milder conditions.
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.
Which molecules lower the activation energy?
Enzymes lower the activation energy of reactions.The activation energy of a reaction is the amount of energy that has to be put into the system before the reaction proceeds of its own accord. It is like setting fire to a log. First you must supply enough energy by burning a match, paper, kindling, and so on, until the log is hot enough to catch and continue burning on its own. This energy that you supply is the activation energy.When an enzyme is present, the activation energy is lower, and so the reaction proceeds more readily at the temperature of the organism. A concept known as the induced-fit modelexplains how enzymes lower activation energy, by suggesting that the interaction of a substrate with an active site on the surface of the enzyme causes a change in the enzyme's shape, which in turn affects the substrate in such a way as to encourage the reaction.
What is activation energy How does a catalyst affect activation energy?
Activation energy is the energy required by a reaction for the reaction to occur. The catalyst lowers the activation energy, making it easier for the reaction to happen.Improvement:A catalyst don't lowers the activation energy. A catalyst creates a alternative route (*) for the same reaction with a lower activation energy.* = as a result of the interaction of the reagents with the catalyst.
How do enzymes in your body make chemical reactions occur at safe tempertuare?
Enzymes lower the activation energy of certain types of reactions. Because energy is directly related to heat, a lower activation energy corresponds to lower heat.
Lower a chemical reactions activation energy?
A catalyst lowers the activation energy without being consumed during a reaction
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.
Does a catalyst effect Ea?
Yes, a catalyst can lower the activation energy (Ea) of a reaction by providing an alternative reaction pathway that involves a lower activation energy. This allows the reaction to occur more easily and at a faster 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 does it relate to cell metabolism?
Activation energy is the energy required to initiate a chemical reaction. In cell metabolism, enzymes lower the activation energy needed for reactions to occur, allowing them to proceed at a faster rate. This enables biological processes to efficiently convert molecules into products such as energy or building blocks for the cell.
