Explain why temperature has an effect on reaction rate. Explain why concentration has an effect on...

Explain why temperature has an effect on reaction rate.

Explain why concentration has an effect on reaction rate.

Expert Solution

1) Temperature effect on reaction rate :

As you increase the temperature the rate of reaction increases. As a rough approximation, for many reactions happening at around room temperature, the rate of reaction doubles for every 10°C rise in temperature.

but be careful not to take this too literally. It doesn't apply to all reactions. Even where it is approximately true, it may be that the rate doubles every 9°C or 11°C or whatever. The number of degrees needed to double the rate will also change gradually as the temperature increases.

2) concentration has an effect on reaction rate.:

For many reactions involving liquids or gases, increasing the concentration of the reactants increases the rate of reaction.

In a few cases,

increasing the concentration of one of the reactants may have little noticeable effect of the rate.

If the concentration of a dissolved reactant is increased, or the pressure of a reacting gas is increased: the reactant particles become more crowded. there is a greater chance of the particles colliding. the rate of reaction increases.

queen_honey_blossom answered 6 months ago

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