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What is enzyme and active sites?
Enzymes are biochemical catalyst that are chemically proteins. Active site is a place where the enzymatic chemical reaction takes place.
The poison for platinum catalyst is?
The most common poison for a platinum catalyst is carbon monoxide (CO). CO can adsorb onto the surface of the catalyst and block active sites, reducing its effectiveness in catalyzing reactions.
Why am enzyme can be used to catalyst a large quantity of substrate?
Many times enzymes have multiple active sites that allow for many simultaneous reactions. For example, it's possible to have a fourth of the number of enzymes as substrate molecules, but the enzyme may have four active sites, resulting in one active site per substrate molecule.
What is meant by 'poisoning' a catalyst?
It means decreasing the efficiency of the catalyst, and slowing down the reaction. The chemicals used for this are called Inhibitors, although it may not contain any poisons or toxic chemicals
What is poisoning of catalysis?
Poisoning of catalysis refers to the process where an unwanted substance, known as a catalyst poison, inhibits the activity of a catalyst, reducing its effectiveness in facilitating a chemical reaction. This can occur when the poison adsorbs onto the active sites of the catalyst, blocking the reactants from interacting with it. Common examples include sulfur or lead in catalytic converters, which can significantly impair their performance. Ultimately, catalyst poisoning can lead to decreased reaction rates and increased production costs.
What is enzyme and active sites?
Enzymes are biochemical catalyst that are chemically proteins. Active site is a place where the enzymatic chemical reaction takes place.
The poison for platinum catalyst is?
The most common poison for a platinum catalyst is carbon monoxide (CO). CO can adsorb onto the surface of the catalyst and block active sites, reducing its effectiveness in catalyzing reactions.
Why am enzyme can be used to catalyst a large quantity of substrate?
Many times enzymes have multiple active sites that allow for many simultaneous reactions. For example, it's possible to have a fourth of the number of enzymes as substrate molecules, but the enzyme may have four active sites, resulting in one active site per substrate molecule.
What is an example of a catalyst in a sentence?
This compound is an active homogeneous epoxidation catalyst in its own right.
What is meant by 'poisoning' a catalyst?
It means decreasing the efficiency of the catalyst, and slowing down the reaction. The chemicals used for this are called Inhibitors, although it may not contain any poisons or toxic chemicals
A substance which helps a reaction to take place but that does not take an active part is a?
A substance which helps with chemical reactions, by making them possible at all, or reducing the effort required, is a catalyst.
What is poisoning of catalysis?
Poisoning of catalysis refers to the process where an unwanted substance, known as a catalyst poison, inhibits the activity of a catalyst, reducing its effectiveness in facilitating a chemical reaction. This can occur when the poison adsorbs onto the active sites of the catalyst, blocking the reactants from interacting with it. Common examples include sulfur or lead in catalytic converters, which can significantly impair their performance. Ultimately, catalyst poisoning can lead to decreased reaction rates and increased production costs.
Parts of the enzyme molecule that interact with a substrate are called?
active sites
How does increasing surface area make catalyst more effective?
Increasing the surface area of a catalyst enhances its effectiveness by providing more active sites for reactants to interact. This allows for a greater number of collisions between reactants and the catalyst, thereby increasing the rate of reaction. A larger surface area also improves the distribution of the catalyst, leading to more uniform reaction conditions. Overall, this results in higher catalytic efficiency and faster reaction rates.
Why when the surface area of catalyst increases the rate of reaction increases?
When the surface area of a catalyst increases, more active sites become available for reactants to interact with, leading to a higher likelihood of collisions between the reactants and the catalyst. This enhances the rate at which the reaction occurs since more particles can engage in the catalytic process simultaneously. Consequently, a larger surface area effectively accelerates the overall reaction rate.
What is a reactant that binds to a catalyst?
A reactant that binds to a catalyst is known as a substrate. Substrates bind to the active site of the catalyst, where the chemical reaction takes place. This binding lowers the activation energy required for the reaction to occur.
How do you regenerate active alumina catalyst for hydrogen peroxide production?
Regenerating an active alumina catalyst for hydrogen peroxide production involves calcination to remove impurities and reactivate the catalyst. The catalyst is typically heated to a high temperature to burn off any organic residues and restore its catalytic activity. It is important to follow the manufacturer's guidelines and ensure proper handling to extend the catalyst's lifespan.
