A sample of Br$_2$ (g) takes 14.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?**time:** [_______] min---**Explanation:** This question involves the principle of effusion, which is the movement of gas molecules through a small opening. According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to the square root of its molar mass. If you need to calculate the time it would take for the same number of moles of Argon (Ar) gas to effuse through the membrane, use Graham's law to find the ratio of the effusion rates, and thereby, the corresponding time it would take for Argon compared to bromine.

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A sample of Br, (g) takes 14.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane? time: min

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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