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if reaction is exothermic then on heating rate of reaction wil be low,and if reaction is endothermic then rate of reaction wil be high on heating
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∙ 13y ago
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What changes could you use to increase the atom economy in a reaction?
Addition of a catalyst or increasing the temperature will increase the rate of a chemical reaction.
Why does an increase in reaction temperature generally increase the reaction rate?
All chemical reactions must be thought of as collisions between the particles of reactants and products. As the temperature of the reaction increases, the energy of the particles also increases and so there is a greater chance of more collisions occuring, and as a result, in general, an increase in reaction temperature increases the reaction rate
What leads to an increase in the rate of a chemical reaction?
Either (or both) an increase in the reactants or temperature will increase the rate of a chemical reaction.
What happens to the rate constant of a chemical reaction when the temperature increases?
Increasing the temperature will cause there to be an increase in kinetic energy. This results in an increase in collision frequency, and eventually an increase in rate of reaction as well.
What are three ways to increase the rate at which particular reaction proceeds?
There are three ways to increase the rate of a chemical reaction. One way is to increase the temperature of the reaction, which increases the rate of molecular collision. Another option is to add a catalyst to the reaction which chemically enables the rate of reaction. Lastly, increase the pressure in the reaction area, which increases the rate of molecular collisions.
How does heat affect the rate of the reaction?
Increasing the temperature the reaction rate increase.
Is an exothermic reaction will produce heat and will be reabsorbed to increase the rate of reaction?
Have you heard of Haber-Bosch process of production of ammonia. This is an example of the question you asked. If we apply the required heat in the beginning of the reaction we do not need to apply it again as its exothermic reversible reaction and will use the heat to continue the reaction. But the rate of reaction is not increased.
What changes could you use to increase the atom economy in a reaction?
Addition of a catalyst or increasing the temperature will increase the rate of a chemical reaction.
How does salt increase the melting rate of water?
When salt is introduced to water, it creates an endothermic reaction. This reaction creates heat, therefore speeding up the melting rate.
Why does an increase in reaction temperature generally increase the reaction rate?
All chemical reactions must be thought of as collisions between the particles of reactants and products. As the temperature of the reaction increases, the energy of the particles also increases and so there is a greater chance of more collisions occuring, and as a result, in general, an increase in reaction temperature increases the reaction rate
Why does increase in temperature increase the rate of a reaction?
To answer it, you have to imagine small particles in a solution. Let's take a simple reaction like A + B -> C To react, A and B have to bump each others. If you heat the solution, atoms will move faster, so you will increase the probability of having shocks between A and B, then you will speed the reaction. It's simplified, but it almost explains what really happens.
What happens to the rate constant of a chemical reaction when the temperature increases?
Increasing the temperature will cause there to be an increase in kinetic energy. This results in an increase in collision frequency, and eventually an increase in rate of reaction as well.
What leads to an increase in the rate of a chemical reaction?
Either (or both) an increase in the reactants or temperature will increase the rate of a chemical reaction.
What are three ways to increase the rate at which particular reaction proceeds?
There are three ways to increase the rate of a chemical reaction. One way is to increase the temperature of the reaction, which increases the rate of molecular collision. Another option is to add a catalyst to the reaction which chemically enables the rate of reaction. Lastly, increase the pressure in the reaction area, which increases the rate of molecular collisions.
How is the effect of concentration changes on the reaction seen in the rate law?
Reaction rate increase when the concentration increase.
An increase in temperature will cause the rate of a chemical reaction to?
Increasing the temperature the dissolving rate increase.
Which will speed up a chemical reaction A Apply heat B Increase the concentration of the reactants C Grind up the substance so there is more surface area?
The 2 ways to increase chemical reaction rate are applying heat or a catalyst. So it is A : Applying heat. ;)
