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Catalysts doesn't affect the energy of reactions
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What will the profile for endothermic and exothermic with the catalyst added?
In the presence of a catalyst, both endothermic and exothermic reactions will have their activation energy lowered, allowing them to proceed more quickly. For endothermic reactions, the overall energy profile shows a reactant state with lower energy than the products, but the catalyst reduces the energy barrier for the transition state. In exothermic reactions, the reactants start at a higher energy level than the products, and again, the catalyst facilitates the reaction without altering the energy difference between reactants and products. Thus, while the catalyst speeds up the reaction, it does not affect the overall energy change (ΔH) for either type of reaction.
What is the biological catalyst that lowers the activation energy of reactions in cells?
an enzyme
What facilitates chemical reactions by reducing the energy needed for it to occur?
A catalyst
Is a catalyst generally required in biochemical reactions?
No, not all biochemical reactions require a catalyst. However, catalysts can help accelerate the rate of biochemical reactions by lowering the activation energy required for the reaction to proceed.
Why does catalyst affect reaction speed?
The activation energy is reduced.
How do catalyst affect the energy of reaction?
Catalysts greatly reduce the amount of activation energy needed to begin a reaction.
Biologic catalyst that speed up chemical reactions?
Enzymes are biologic catalyst that speed up chemical reactions by lowering its activation energy Ea
What facilitates chemical reactions by reducing the energy needed for it to occur?
A catalyst
What is the biological catalyst that lowers the activation energy of reactions in cells?
an enzyme
What is ture of a catalyst?
It is true that a catalyst is used in chemical reactions to help speed up the reaction by reducing activation energy.
Is a catalyst generally required in biochemical reactions?
No, not all biochemical reactions require a catalyst. However, catalysts can help accelerate the rate of biochemical reactions by lowering the activation energy required for the reaction to proceed.
Does a catalyst affect a reaction activation energy?
yes. lowers it.
Why does catalyst affect reaction speed?
The activation energy is reduced.
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.
What are different factors that affect the rates of chemical reactions?
Some different factors that affect the rates of chemical reactions include whether or not a catalyst is present, the concentration of the reactants, temperature of the reactants, & pressure in the case of gas phase 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
What helps chemical reactions occur?
Chemical reactions occur when reactant molecules collide with enough energy and proper orientation to overcome the activation energy barrier. Factors such as increasing temperature, using a catalyst, and adjusting reactant concentrations can all help facilitate chemical reactions by providing more energy for collisions or altering the reaction pathway.
