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When a catalyst is present more or less activation energy is needed to satrt a chemical reaction?
When a catalyst is present, it lowers the activation energy required to initiate a chemical reaction. This allows the reaction to proceed more easily and at a faster rate without being consumed in the process. Consequently, less energy is needed to overcome the energy barrier, making it easier for reactants to convert into products.
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When a catalyst is present is more or less activation energy needed to start a chemical reaction?
When a catalyst is present, less activation energy is needed to start a chemical reaction. This is because the catalyst provides an alternative pathway for the reaction to occur, allowing it to proceed more readily. The catalyst achieves this by lowering the activation energy barrier for the reaction.
What happpens to the speed of a chemical reaction when a catalyst is present?
When a catalyst is present in a chemical reaction, it increases the reaction speed by lowering the activation energy required for the reaction to occur. This allows more molecules to collide with enough energy to react, leading to a faster formation of products. Importantly, the catalyst remains unchanged at the end of the reaction, allowing it to be used multiple times.
When a catalyst is present more or less activation energy is needed?
When a catalyst is present, less activation energy is needed for a chemical reaction to proceed. Catalysts work by providing an alternative reaction pathway with a lower activation energy, thereby increasing the reaction rate without being consumed in the process. This allows the reaction to occur more easily and efficiently under the same conditions.
What happenes to the speed of a chemical reaction when a catalyst is present?
The speed of a chemical reaction may increase or decrease by the addition of a catalyst. In the synthesis of ammonia by Haber's process , Fe + Mo mixture acts as a catalyst which increases the formation of ammonia,here Fe + Mo mixture is positive catalyst(increases the speed of the reaction). The oxidation of chloroform (CHCl3) by air in presence of sunlight is retorted by the edition of 1% ethyl alcohol in to it. Here alcohol acts as a negative catalyst (decreases the speed of the reaction)to the oxidation of chloroform .
What is catalist?
"Catalyst" typically refers to a substance that increases the rate of a chemical reaction without being consumed in the process. It provides an alternate pathway for the reaction to occur, lowering the activation energy required. Catalysts play a crucial role in various industrial processes and biological systems.
When a catalyst is present is more or less activation energy needed to start a chemical reaction?
When a catalyst is present, less activation energy is needed to start a chemical reaction. This is because the catalyst provides an alternative pathway for the reaction to occur, allowing it to proceed more readily. The catalyst achieves this by lowering the activation energy barrier for the reaction.
When a catalyst is present and more or less activation energy is needed to start a chemical rection?
When a catalyst is present, it lowers the activation energy required for a chemical reaction to occur. This allows the reaction to proceed more quickly and efficiently by providing an alternative pathway with a lower energy barrier. As a result, the rate of the reaction increases and products are formed faster.
When a catalyst is present more less activation energy is needed to start a chemical reaction?
Less Ea.
What happpens to the speed of a chemical reaction when a catalyst is present?
When a catalyst is present in a chemical reaction, it increases the reaction speed by lowering the activation energy required for the reaction to occur. This allows more molecules to collide with enough energy to react, leading to a faster formation of products. Importantly, the catalyst remains unchanged at the end of the reaction, allowing it to be used multiple times.
When a catalyst is present more or less activation energy is needed?
When a catalyst is present, less activation energy is needed for a chemical reaction to proceed. Catalysts work by providing an alternative reaction pathway with a lower activation energy, thereby increasing the reaction rate without being consumed in the process. This allows the reaction to occur more easily and efficiently under the same conditions.
What substance increases the rate of a reaction but is not itself changed by the reaction?
It's called a catalyst. A catalyst is present during a chemical reaction but does not participate as a reactant or product. A catalyst lowers the reaction's activation energy, making the reaction easier to happen. In the equation for a chemical reaction, the catalyst's formula appears in small notation above the "yield" arrow (format won't let me show you an example.) An example of a catalyst is potassium iodide (KI) speeding up the decomposition of hydrogen peroxide (H2O2).
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.
What happenes to the speed of a chemical reaction when a catalyst is present?
The speed of a chemical reaction may increase or decrease by the addition of a catalyst. In the synthesis of ammonia by Haber's process , Fe + Mo mixture acts as a catalyst which increases the formation of ammonia,here Fe + Mo mixture is positive catalyst(increases the speed of the reaction). The oxidation of chloroform (CHCl3) by air in presence of sunlight is retorted by the edition of 1% ethyl alcohol in to it. Here alcohol acts as a negative catalyst (decreases the speed of the reaction)to the oxidation of chloroform .
What is catalist?
"Catalyst" typically refers to a substance that increases the rate of a chemical reaction without being consumed in the process. It provides an alternate pathway for the reaction to occur, lowering the activation energy required. Catalysts play a crucial role in various industrial processes and biological systems.
What are the salient features of catalyst?
A catalyst alters (usually increases) the speed of a chemical reaction in which there is no net change in the amount of catalyst present after reaction is complete.
Which would have the lowest activation energy?
Activation energy is just the energy needed to start a reaction, so it is not clear which has the lowest. Some reactions have negative reaction energy, which is just equivalent to a barrierless reaction.
What are the features of catalyst?
A catalyst alters (usually increases) the speed of a chemical reaction in which there is no net change in the amount of catalyst present after reaction is complete.
