Change in boiling point is directly proportional to the what

The boiling point of the solvent above a solution change from that of the pure solvent is directly proportional to the molal concentration of the solute

Explanation:

d.) circle motion requires a force to give it a centripetal acceleration.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.