Question

Which of the following leads to a higher rate of diffusion?

Cooled gas
Higher molar mass of particles
Higher velocity of particles
Reduced temperature

Answer 1

Answer;

Higher velocity of particles

Explanation;

The diffusion rate is determined by a variety of factors which includes;

• Temperature such that the higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly and the diffusion rate will be high.
• Concentration gradient such that the greater the difference in concentration, the quicker the rate of diffusion.
• Higher velocity of particles increases the diffusion rate as this means more kinetic energy by the particles and hence the particles will mix and move faster, thus higher diffusion rate.