What are the effects of temperature on chemical reactions?

What are the effects of temperature on chemical reactions?

Temperature can significantly affect the rate of chemical reactions. Generally, as temperature increases, reaction rates also increase due to higher kinetic energy.

Why does increasing temperature speed up reactions?

Higher temperatures provide reactant molecules with more energy, leading to more frequent and effective collisions, which speeds up the reaction.

Are there any exceptions to this rule?

Yes, some reactions may slow down at higher temperatures, especially if they involve the formation of unstable intermediates or if the reaction is exothermic.

How does temperature affect enzyme activity?

Enzymes have optimal temperature ranges. Too high or too low temperatures can denature enzymes or reduce their activity.

Can you give an example of a reaction that is affected by temperature?

Sure! The decomposition of hydrogen peroxide is accelerated at higher temperatures, demonstrating the effect of temperature on reaction rates.