Why is an increase in temperature observed on mixing chloroform with acetone?

Why is an increase in temperature obseved on mixing chloroform with acetone?

The reaction of chloroform with acetone gives

What type of azetrope will result on mixing chloroform and acetone ?

Which statement is true about the solution of chloroform and acetone?

When non ideal solution was prepared by mixing 30 mL chloroform and 50 mL acetone, the volume of mixture will be