Assume a reaction takes place in a basic solution to form the given products MnO4-(aq)+ Cl-(aq) = MnO2 (s) + Cl2 (g) (unbalanced) i. Balance the given half reactions for atoms and charge
MnO4- + H2O = MnO2 + OH-
Cl- = Cl2

ii. Multiply to balance the charges in the reaction

iii. Add the equations and simplify to get a balanced equation

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.