0
What else can I help you with?
What will change when a catalyst is added to a chemical reaction?
When a catalyst is added to a chemical reaction, the rate of the reaction will increase without being consumed in the process. This means that the reaction will reach equilibrium faster and require less activation energy. The overall chemical equilibrium and products formed will remain the same.
How do you find the overall activation energy of a simultaneous parallel reaction?
To find the overall activation energy of a simultaneous parallel reaction, you can use the concept of the weighted average of the activation energies of the individual reactions. Calculate the contribution of each reaction to the overall rate and use these contributions to determine the effective activation energy for the overall reaction.
Whats the difference between activation energy and the change of energy in a PE diagram?
Activation energy is the minimum energy required for a reaction to occur, while the change in energy in a potential energy diagram represents the difference in energy between the reactants and the products of a reaction. Activation energy is specific to the transition state of a reaction, whereas the change in energy is a measure of the overall energy difference between reactants and products.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
A catalyst lowers the activation energy of a reaction, making it easier for the reactants to form products. It does not change the potential energy of the reactants or products, nor does it affect the overall heat of the reaction.
Is it true that when an enzyme promotes a chemical reaction by lowering the activation energy it only affects the rate of the reaction?
No, enzymes do not alter the equilibrium of a reaction. They accelerate both the forward and backward reactions equally, which keeps the equilibrium constant unchanged. The activation energy reduction increases the rate of the reaction but does not affect the overall equilibrium.
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 does a enzyme do A Adds heat to a reaction speeding it up B Lowers the activation energy of a reaction C Cools a reaction slowing it down D Raises the activation energy of reaction?
B. Lowers the activation energy of a reaction. Enzymes facilitate chemical reactions by decreasing the energy needed to start the reaction, thus speeding up the overall process.
What will change when a catalyst is added to a chemical reaction?
When a catalyst is added to a chemical reaction, the rate of the reaction will increase without being consumed in the process. This means that the reaction will reach equilibrium faster and require less activation energy. The overall chemical equilibrium and products formed will remain the same.
How do you find the overall activation energy of a simultaneous parallel reaction?
To find the overall activation energy of a simultaneous parallel reaction, you can use the concept of the weighted average of the activation energies of the individual reactions. Calculate the contribution of each reaction to the overall rate and use these contributions to determine the effective activation energy for the overall reaction.
What Chemical speeds up a reaction but is unaffeccted by overall reaction?
A catalyst is something present in a reaction that is not consumed. It works by lowering the activation energy needed for the reaction. It isn't necessarily a chemical, though. It can be an element, chemical, heat, or UV light, just to name a few.
Whats the difference between activation energy and the change of energy in a PE diagram?
Activation energy is the minimum energy required for a reaction to occur, while the change in energy in a potential energy diagram represents the difference in energy between the reactants and the products of a reaction. Activation energy is specific to the transition state of a reaction, whereas the change in energy is a measure of the overall energy difference between reactants and products.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
A catalyst lowers the activation energy of a reaction, making it easier for the reactants to form products. It does not change the potential energy of the reactants or products, nor does it affect the overall heat of the reaction.
What is the method to calculate the reaction enthalpy for a chemical reaction?
The method to calculate the reaction enthalpy for a chemical reaction is to subtract the sum of the enthalpies of the reactants from the sum of the enthalpies of the products. This difference represents the overall energy change of the reaction.
What is the role of the rate determining step in the energy diagram of a chemical reaction?
The rate-determining step in a chemical reaction is the slowest step that determines the overall rate of the reaction. It sets the pace for the entire process and influences the energy diagram by determining the activation energy required for the reaction to occur.
Is it true that when an enzyme promotes a chemical reaction by lowering the activation energy it only affects the rate of the reaction?
No, enzymes do not alter the equilibrium of a reaction. They accelerate both the forward and backward reactions equally, which keeps the equilibrium constant unchanged. The activation energy reduction increases the rate of the reaction but does not affect the overall equilibrium.
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.
How does a catalyst change the rate of a chemical reaction?
Lowers the activation energy of a reaction, therefore speeding the reaction up.Catalysts speed up chemical reactions. They do not change the products or reactants of the reaction, and are not used up or consumed in the reaction. Biological catalysts are called enzymes. Catalysts lower the activation energy (or energy needed to start a reaction), and cause the reaction to occur more quickly.
