Worksheet Graham's Law of Effusion
Assessment
•
Shaima Sajjad
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Chemistry
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10th - 12th Grade
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Hard
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5 questions
Show answers
1.
Multiple Choice
1. Which of the following correctly describes effusion?
The movement of a gas into an area of higher pressure, always
a. The movement of a gas into a vacuum (lower pressure area)
a. The mixing of gases
a. None of the above
2.
Multiple Choice
Which of the following correctly describes diffusion?
The movement of gases into an area of higher pressure, always
The movement of gases into a vacuum
a. The mixing of gases
a. Both (a) and (b)
3.
Multiple Choice
The ratio of the speed of helium to gas X is 16:1. What is the molar mass of gas X? (use 4 g/mol for He)
1024
256
128
64
4.
Multiple Choice
The ratio of the speed of neon to gas X is 3:1. What is the molar mass of gas X? (use 20 g/mol for Ne)
240
180
160
60
5.
Multiple Choice
The molecular mass of gas X is 320 g/mol. The other gas is neon. What is the ratio of the speed of neon to that of gas X? (which gas is faster?? Use 20 for Neon)
4 to 1
2 to 1
16 to 1
20 to 1
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