Select the correct answer.
What effect will the number of particles and temperature have on the rate of diffusion of gas molecules?
O A.
The rate of diffusion decreases with the increase in number of particles and temperature.
B. The rate of diffusion increases with the increase in number of particles and temperature.
C. The rate of diffusion increases with the increase in number of particles and decrease in temperature.
O D.
The rate of diffusion decreases if the number of particles and temperature are kept constant.
O E.
The rate of diffusion increases if the number of particles and temperature are kept constant.

Temperature: Higher temperatures increase the energy and therefore the molecules' movement, increasing the rate of diffusion. Lower temperatures decrease the molecules' energy, thus decreasing the diffusion rate.

Solvent density: As the density of a solvent increases, the rate of diffusion decreases. The molecules slow down because they have a more difficult time getting through the denser medium.

Diffusion rate depends on factors like concentration gradient, surface area, and distance gas particles must travel.

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