Increasing the polarity of the solvent increases the reaction rate because the leaving group and carbocation (both very polar species) are better stabilized by polar solvents (like dissolves like).
As long as all the reactants are completely soluble in the solvent, it will not have a very large effect on the reaction rate.
The temperature of the solution is a much more important factor in...
For the very large majority of chemical reactions, increasing the temperature increases the rate of the reaction. This is because nearly all chemical reactions have some activation barrier which must...
Enzymes are biological catalysts. They speed up metabolic reactions in the body but remain chemically unchanged themselves. Enzymes contain an active site. This is a region to which another molecule...
Catalysts affect reaction rates by providing an alternate route of reaction with lower activation energy. Therefore, they speed up the process they are catalyzing in both the forward and reverse...