Question

Why do we keep acetone in cold places? What is the effect of temperature on the
rate of diffusion?

Answer 1

ether and acetone are highly volatile liquids .i.e. they vaporise easily at room temp. also... so if they are not kept at room temp. or at warm places, they will vaporise.. in order to suppress their vaporisation, they are kept at cool plces.
An increase in temperature increases the speed at which molecules move at. An increased speed will yield faster and more even diffusion. A decrease in temperature will cause molecules to slow down. This will slow diffusion and make the spread of molecules less even