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Does the overall enthalpy change of a chemical reaction depend on the reaction pathway?
Wiki User
∙ 14y ago
Absolutely not.
Wiki User
∙ 14y ago
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What does a catalyst not do?
Catalysts do not change the postition of the reaction's equilibrium. Adding a catalyst will increase the rate of reaction, but it will do this by providing another pathway for the reaction to occur acros, meaning a lower activation enthalpy is needed. :)
Role of enzyme in chemical reaction?
An enzyme is a catalyst, and it speeds up the biochemical reaction. It does this by providing an alternate pathway for the reaction to occur, and this alternate pathway has a lower activation energy than the pathway in the absence of the enzyme.
Do catalysts speed up a chemical reaction or slow it down?
A catalyst works by providing a reaction route with a lower activation energy. An inhibitor slows a reaction and can work in several ways, for instance by tying up one of the reactants. We also use the term when we say catalyst inhibitor, which is something which binds to the active sites on a heterogeneous catalyst.
What represents the collection of chemical reaction that occur in a cell?
METABOLISM
What is a chemical reaction in which the products reform the original reactant?
Enzyme catalyzed reactions are the chemical reactions that occur in series where the product of one reaction serves as the reactant in the next reaction. These reaction pathways allow a cell to grow and reproduce.
Hess's law is based on what principle?
Hess's law is based on the principle that the enthalpy change of a reaction is independent of the pathway taken. This means that the overall enthalpy change for a reaction is the same, regardless of the number of steps involved in the reaction as long as the initial and final conditions are the same.
What does the presence of an enzyme cause?
Enzymes are biological catalysts which cause the rate of a reaction to increase (by providing an alternate reaction pathway with a lower activation enthalpy). They are very specific to the reaction they catalyse.
What does a catalyst not do?
Catalysts do not change the postition of the reaction's equilibrium. Adding a catalyst will increase the rate of reaction, but it will do this by providing another pathway for the reaction to occur acros, meaning a lower activation enthalpy is needed. :)
Why catalyst affect the rate of chemical reaction?
They provide alternative pathway for the reaction, usually with less energy barrier
Is it true that a series of linked chemical reactions in which the product of one chemical reaction serves as the reactant in the next reaction called biochemical pathway?
Yes it is true
A tracer is a radioactive element whose pathway through the steps of a chemical reaction can be followed?
Yes a tracer is a radioactive element whose pathway through the steps of a chemical reaction can be followed. It can be used to explore the mechanism of chemical reactions by tracing the path that the radioisotope follows from reactants to products.
Complex series of chemical reactions in which the products of one reaction are the reactants for the next?
biochemical pathway
Role of enzyme in chemical reaction?
An enzyme is a catalyst, and it speeds up the biochemical reaction. It does this by providing an alternate pathway for the reaction to occur, and this alternate pathway has a lower activation energy than the pathway in the absence of the enzyme.
Do catalysts speed up a chemical reaction or slow it down?
A catalyst works by providing a reaction route with a lower activation energy. An inhibitor slows a reaction and can work in several ways, for instance by tying up one of the reactants. We also use the term when we say catalyst inhibitor, which is something which binds to the active sites on a heterogeneous catalyst.
Changing the course or pathway of a chemical reaction so that it requires less activation energy?
I have no clue, I need that answer also for Chemistry... :-/
What is the energy pathway for chemiluminescent light?
okay so the energy pathway is: chemical energy----> visible light energy and how that happens is when two (or more) chemicals mix that causes a chemical reaction. The chemical reaction releases chemical energy, so instead of it the chemical energy releasing too much heat, the energy is used for light instead. So basically Chemiluminescence is the process in which chemical energy produced by a chemical reaction is transformed into light energy.
What represents the collection of chemical reaction that occur in a cell?
METABOLISM
