The distance between a proton and an electron is cut in half. how does the force of attraction change? a) the force becomes twice as much. b) the force becomes one-half as much. c) the force becomes four times as much. d) the force becomes one-quarter as much.

C) The force becomes four times as much.

answer is a

explanation:

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.