this artist's illustration shows
earth shortly after the moon
formed. earth was hot and vol-
canic, and contained no liquid
water. the moon was much
closer to earth than it is today.
over time, earth's surface began
to cool, forming solid land.
could life have existed on
earth
at the time shown in the illus-
tration? why, or why not?

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.