Diffusion and Effusion of Gases

What is the process of gas diffusion in air called?

• Gas diffusion

• Gas conduction

• Air convection

• Liquid diffusion

Tags

NGSS.MS-ESS2-6

Which factors affect the rate of gas diffusion in air?

• Color of the gas

• Humidity in the air

• Pressure of the gas

• Concentration gradient, temperature, surface area, and molecular weight of the gas

What is the main driving force for liquid diffusion in water?

• The force of gravity pulling water molecules downward

• Movement of water molecules from low to high concentration

• The temperature of the water affecting the speed of diffusion

• Movement of water molecules from high to low concentration

How does temperature affect the rate of gas diffusion in air?

• Temperature increases the rate of gas diffusion.

• Temperature has no effect on the rate of gas diffusion.

• Temperature only affects the rate of liquid diffusion, not gas diffusion.

• Temperature decreases the rate of gas diffusion.

What is the unit of measurement for the rate of diffusion of gases and liquids?

• moles per second or moles per square meter per second

• Pounds per square inch

• Gallons per hour

• Inches per minute

What is the role of concentration gradient in the process of diffusion?

• It has no role in the process of diffusion

• It only affects the movement of water molecules

• It drives the movement of particles from high concentration to low concentration

• It causes the movement of particles from low concentration to high concentration

What is the formula to calculate the rate of diffusion of gases and liquids?

• Archimedes' principle

• Graham's law of diffusion

• Boyle's law

• Newton's law of motion

What are some real-life examples of gas diffusion in air?

• Some real-life examples of gas diffusion in air include the spreading of perfume or the dispersion of air freshener in a room.

• The rotation of the Earth

• The growth of plants

• The boiling of water

Tags

NGSS.MS-ESS2-6

How does molecular weight affect the rate of diffusion of gases and liquids?

• Molecular weight only affects the color of the gas or liquid

• Molecular weight affects the rate of diffusion by influencing the speed at which molecules can move through a medium.

• Molecular weight causes the medium to move faster

• Molecular weight has no effect on the rate of diffusion

What are the applications of understanding gas and liquid diffusion in various industries?

• Gardening techniques

• Cooking recipes

• Car maintenance

• Air and water purification, chemical reactions, and pharmaceutical manufacturing