Define diffusion. Diffusion is the spreading of gas particles into a ---Select--- area as they intermingle with particles of other gases. (b) Describe kinetic-molecular theory. Kinetic-molecular theory relates the kinetic energy of gas particles to their motion. The theory visualizes gas particles as concrete, constantly-moving spheres that are ---Select--- changing direction as a result of frequent ---Select--- collisions with other gas particles. (c) Predict how factors that influence the kinetic energy of gas particles affect the rate of diffusion. The rate of gas diffusion is ---Select--- proportional to temperature because a higher temperature means a/an ---Select--- in the kinetic energy of molecules. The rate of gas diffusion is ---Select--- proportional to the molecular weight of the gas because gas particles with higher masses require ---Select--- energy to move compared to gas particles with lower masses.

A. Diffusion is the spreading of gas particles into a larger area as they intermingle with particles of other gases. In diffusion of gases, moleculesof gases concentrated in a particular area or region spread out to larger areas until they are evenly distributed.

B. Kinetic-molecular theory relates the kinetic energy of gas particles to their motion. The theory visualizes gas particles as concrete, constantly-moving spheres that are constantly changing direction as a result of frequent elastic collisions with other gas particles. The average kinetic energy of the gas molecules is directly proportional to the gas' absolute temperature.

C. The rate of gas diffusion is directly proportional to temperature because a higher temperature means a/an increase in the kinetic energy of molecules. The rate of gas diffusion is inversely proportional to the molecular weight of the gas because gas particles with higher masses require greater energy to move compared to gas particles with lower masses.

Explanation:

Define diffusion.

Diffusion is the spreading of gas particles into a larger area as they intermingle with particles of other gases. In diffusion of gases, moleculesof gases concentrated in a particular area or region spread out to larger areas until they are evenly distributed. For example, the smell of a rotten egg spreads out from the source to a larger area through the process of diffusion.

(b) Describe kinetic-molecular theory.

Kinetic-molecular theory relates the kinetic energy of gas particles to their motion. The theory visualizes gas particles as concrete, constantly-moving spheres that are constantly changing direction as a result of frequent elastic collisions with other gas particles. The average kinetic energy of the gas molecules is directly proportional to the gas' absolute temperature.

(c) Predict how factors that influence the kinetic energy of gas particles affect the rate of diffusion.

The rate of gas diffusion is directly proportional to temperature because a higher temperature means a/an increase in the kinetic energy of molecules. The rate of gas diffusion is inversely proportional to the molecular weight of the gas because gas particles with higher masses require greater energy to move compared to gas particles with lower masses.