Solved: At a given pressure and temperature, it takes 4.85

Chapter 5, Problem 5.73

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QUESTION:

At a given pressure and temperature, it takes 4.85 min for a 1.5-L sample of He to effuse through a membrane. How long does it take for 1.5 L of F2 to effuse under the same conditions?

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QUESTION:

At a given pressure and temperature, it takes 4.85 min for a 1.5-L sample of He to effuse through a membrane. How long does it take for 1.5 L of F2 to effuse under the same conditions?

ANSWER:

Step 1 of 2

According to Graham’s Law of Effusion or diffusion,

 

Where, M is the molar mass.

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