how does temperature affect the rate of diffusion of molecules?

Answer 1

Decrease temperature decrease diffusion.

Temperature is a measure of how much molecular motion there is. Since diffusion is molecular motion, if there is more molecular motion, there is also more diffusion

At lower temperatures there is less molecular motion so there are less enzyme-substrate collisions so the chemical reaction rate decreases. Because of this, any cell activity will also decrease at colder temperatures. If temperatures are too high, the excessive molecular motion can break the strong disulfide bond or the weak bonds (H and ionic) between R-groups changing the shape of the enzyme so it no longer works (denaturing it). This would explain why the highest temperature in the enzyme activity may have had no reactions occurring.

Answer 2

Temperature And Rate Of Diffusion

Answer 3

Firstly, temperature is the measure of the average kinetic energy of molecules in an object, therefore when the temperature increses the molecules will have more kinetic energy, therefore they move faster, when this happens the rate of diffusion also increses.the opposite will happen if the temperature decreases.

Answer 4

Previous responders are basically correct. The speed of a molecule is proportional to the square root of the absolute temperature, so the hotter things are, the faster diffusion occurs.

Answer 5

The Brownian motion of the molecules increases with temperature, and therefore the diffusion rate.

Answer 6

It increases the rate of diffusion because the molecules have more kinetic energy and thus more movement.

Answer 7

due to increased temp. molecules break into atoms then into particles so becouse of smaal size and increased kinetic energy the move faster