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as the temperature of a chemical in this gas phase is increased, the rate of the reaction increases because

User Slakter
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Final answer:

Raising the temperature of a chemical reaction increases the rate of reaction by increasing the frequency and force of collisions between reacting particles.

Step-by-step explanation:

Raising the temperature of a chemical reaction usually results in a higher rate of reaction. When the reactant particles are heated, they move faster and faster. This results in a greater frequency of collisions. A more important effect of the temperature increase is that the collisions occur with a greater force, and are thus more likely to surmount the activation energy barrier and go on to form products. Increasing the temperature of a reaction increases the number of effective collisions between reacting particles, so the reaction rate increases.

User Steve Hatcher
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Answer:

An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision

User Shivaji Mutkule
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