when you have a secondary alcohol treated with H2SO4 how do

when you have a secondary alcohol treated with H2SO4, how do you know weather it undergoes the E1 mechanism or the E2 mechanism?

Solution

Polar solvents favour E1 reactions because they stabilize the intermediate carbocation. E1

eliminations from alcohols in aqueous or alcohol solution are particularly common, and very useful. An acid catalyst is used to promote loss of water