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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
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What term describes a substance rhat lowers the amount of energy needed to start a chemical reaction?
This substance is called a catalyst.
What does it means by giraffe necking at catalyst tubes?
"Giraffe Necking" is the term used to describe the appearance of a tube showing a number of uneven hotzones. It may occur for three main reasons. It may be an extreme type of the hot zone problem caused by extensive deactivation by catalyst poisoning or masking by a surface deposit. It may also be caused by channelling in the catalyst bed, where the gas passes preferentially through certain parts of the catalyst. When channelling occurs, the tube is cooled where gas is flowing and the reaction is occuring and overheats where the passage of gas is blocked. Channeling can be caused by packets of broken catalyst and dust or by accumulation of carbon. Lastly, especially in the case of old catalyst, giraffe necking may indicate that the catalyst is nearing the end of its active life and parts of it are falling below the minimum required activity and the catalyst requires charging.
Is MnO a catalyst?
Yes, it is a chemical catalyst.
Is copper a catalyst?
yeap, a heat catalyst
How is a catalyst like platinum different from an enzyme?
Catalysts are compounds that change the speed of chemical reactions. An enzyme is a protein and also a catalyst. So an enzyme can be a catalyst, but a catalyst can't be an enzyme.
What is meant by catalist in chemistry?
A catalyst is a substance that speeds up a chemical reaction without being consumed by it.
What are examples of anti-catalyst substances?
they are inhibitors of chemical reactions or diminishes the activity of a catalyst. The inhibition is temporary when the poison is adsorbed on the surface of the catalyst in preference to the reactants. The Permanent poisoning is when a covalent bond is formed between the poison and the catalyst.for example volatile sulfur and volatile silicon cause permanent poisoning during many cases. Arsenic are poison to platinum. In the reaction of decomposition of H2O2 by platinum, HCN act as poison. In another case CO act as poison to copper during the reaction of hydrogen and ethylene.
Who was poisoning the food on miner details?
Mia was poisoning the food on miner details because her dad owned the vending machines. So by making every one think that the cafeteria food was poisoned, it meant that every one was buying food from the vending machines, which meant that she had enough money to go to modeling camp.
What term describes a substance rhat lowers the amount of energy needed to start a chemical reaction?
This substance is called a catalyst.
What does it means by giraffe necking at catalyst tubes?
"Giraffe Necking" is the term used to describe the appearance of a tube showing a number of uneven hotzones. It may occur for three main reasons. It may be an extreme type of the hot zone problem caused by extensive deactivation by catalyst poisoning or masking by a surface deposit. It may also be caused by channelling in the catalyst bed, where the gas passes preferentially through certain parts of the catalyst. When channelling occurs, the tube is cooled where gas is flowing and the reaction is occuring and overheats where the passage of gas is blocked. Channeling can be caused by packets of broken catalyst and dust or by accumulation of carbon. Lastly, especially in the case of old catalyst, giraffe necking may indicate that the catalyst is nearing the end of its active life and parts of it are falling below the minimum required activity and the catalyst requires charging.
What is a substance that speeds up a reaction?
A catalyst is a substance that speeds up the rate of a chemical reaction.
A substance that speeds up rate of a chemical reaction?
Catalyst, biocatalyst or enzyme.
What does E-coil mean?
E Coli (assuming that's what you meant) is Esherichia coli, a dangerous bacteria that causes food poisoning.
What is meant by fish and shellfish poisoning?
Paralytic shellfish poisoning (PSP) is a nervous system disease caused by eating cooked or raw shellfish that contain environmental toxins. These toxins are produced by a group of algae (dinoflagellates).
Which does a catalyst not change?
Catalyst is not a reactant.
Catalyst vs one without catalyst What is different?
what is the purpose of catalyst in textile paint?
What is the difference between positive catalyst and negative catalyst?
The substances which increase the rate of a chemical reaction are called a Positive Catalyst whereas The substances which decrease the rate of a chemical reaction are called Negative Catalyst. Positive Catalyst decreases the Activation energy of reactant molecules whereas negative catalyst increases the Activation energy of the reactant molecules. Positive Catalyst is also called the Promoter whereas negative catalyst is also called Inhibitor.
