The compound dimethylamine, (ch3)2nh, is a weak base when dissolved in water. write the kb expression for the weak base equilibrium that occurs in an aqueous solution of dimethylamine:

Explanation:

Kb is base dissociation constant which is measure of the dissociation of a base into component ions in the water.

The base, (CH₃)₂NH dissociates in water as:

(CH₃)₂NH (aq) + H₂O (l)  ⇄ (CH₃)₂NH₂⁺ (aq) + OH⁻ (aq)

The expression for Kb is:

Water is present in large amounts and is not written in the expression for Kb.

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.

explanation:

i think option no d is the correct answer