Indicate whether each statement is true or false. (b) Exothermic reactions are faster than endothermic reactions.

Question

Accepted Answer

Hello everyone. Today, we have the following problem. True or false. The overall entropy change going from reactions to products is a factor that affects reaction rates and endo thermic reactions are always slower than eggs are thermic reactions. So the overall entropy changes actually not one of the four factors that affect reaction rates. So it doesn't determine the rate of the reaction. The four factors that actually affect the reaction rates are going to be the physical state in that the more surface area there is the more room there is for contact or collision. So you're going to have a faster reaction. Secondly, it could depend on how much of a reaction there is. So the reactant concentrations concentrations, if you have more reactant, you can have more collisions equaling a faster reaction rate. Thirdly, of course, is going to be the temperature. And so simply put the higher the temperature, you're gonna have higher kinetic energy of the molecules and thus increased collisions and therefore a faster reaction rate. And lastly, it's going to be the presence of a catalyst and catalyst simply just speed up reactions. So if you have a catalyst, you're going to have a faster reaction rate. And these are the only factors that affect reaction rates, not and not envelop change. So the answer to this is going to be false. Furthermore, endo thermic reactions are not necessarily slower than eggs. A thermic reactions. It just depends on these factors overall. I hope this helped. And until next time.

Indicate whether each statement is true or false. (b) Exothermic reactions are faster than endothermic reactions.

Verified Solution

Key Concepts

Exothermic Reactions

Endothermic Reactions

Reaction Rates