Cold water in one glass and hot water in the other. a piece of paint was dropped into the glass

Cold water in one glass and hot water in the other. a piece of paint was dropped into the glass. in which glass will the water color more quickly and why?

The average kinetic energy of molecules (i.e. the speed of their movement) of hot water will be greater than that of cold water. Consequently, all diffusion processes (dissolution of substances, interpenetration of their molecules) will also occur faster. Therefore, in hot water, staining will occur faster than in cold water.