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Effusion

Q. If 37.42 seconds were required for 1.0L of an unknown gas to pass through a small hole in a vacuum. Under same conditions, 10.0 seconds were required for 1.0 L of hydrogen gas to effuse. Which of the following is the known gas?

Solved • Apr 12, 2020

Effusion

Q. Methane, CH4, diffuses in a given apparatus at the rate of 30ml*min^-1. At what rate would a gas with a molar mass of 100 diffuse under the same conditions?

Solved • Apr 8, 2020

Effusion

Q. At the same temperature, the rate of effusion of neon atoms will be approximately ______ times that of arsine gas molecules, AsH3. A. 2.0 B. 4.0 C. 10.0 D. 39.0 E. 78.0

Solved • Apr 8, 2020

Effusion

Q. In an effusion experiment it required 40 s for a certain number of moles of a gas of unknown molar mass to pass through a small orifice into a vacuum. Under the same conditions 16 s were required for the same number of moles of O2 to effuse. What is the molar mass of the unknown gas? A. 5.1 g/mol B. 12.8 g/mol C. 80 g/mol D. 100 g/mol E. 200 g/mol

Solved • Apr 8, 2020

Effusion

Q. An unknown gas Q effuses 1.38 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q? Enter your answer with one decimal place. Do not type the units with your answer.

Solved • Apr 8, 2020

Effusion

Q. If you start with a 50:50 mixture of 238UF6 and 235UF6, during the first stage of separation 235UF6 diffuses 1.0043 times faster than 238UF6 . True or false. Explain.

Solved • Apr 6, 2020

Effusion

Q. Calculate the ratio of effusion rates for 238UF6 and 235UF6. The atomic mass of U-235 is 235.054 amu and that of U-238 is 238.051 amu. .

Solved • Apr 4, 2020