Diffusion and Effusion of Gases

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

The picture  is an example of _________________.

• isotonic
• diffusion
• osmosis
• active transport

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration

• High, low
• Low, high
• Low, low,
• High, high

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup

• no concenteraion gradient

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low concentration.
• no movement 
• molecules move everywhere

Where is there a low concentration of perfume?

• in the bottle
• on the hand
• in the room
• in the top

how many times faster does He effuse compared to N₂ (He = 4  N₂ = 28)

• 1.2 times faster
• 2.65 times faster
• 7 times faster
• 0.377 times faster

Tags

NGSS.MS-PS3-5

If an unknown gas diffuses twice the speed of O₂ (M=32) , what would its molar mass be

• 2
• 4
• 6
• 8

A student put a few drops of lemon juice into an uninflated balloon.The student tied a knot in the balloon, placed it in a shoe box, and covered it with a lid. The following day, the student opened the box and was able to smell lemon in the box. Through what process were molecules able to pass through the balloon?

• respiration
• fermentation
• osmosis
• diffusion