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Author Question: According to kinetic theory, a typical gas molecule in thermal equilibrium at room temperature has a ... (Read 90 times)

Sufayan.ah

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on: Jul 28, 2018
According to kinetic theory, a typical gas molecule in thermal equilibrium at room temperature has a kinetic energy K = 6.00  10-21 J, regardless of mass. Estimate the speed at room temperature of a hydrogen molecule H2 (m = 3.34  10-27 kg) and a xenon atom (m = 2.00  10-25 kg). kB = 1.38  10-23 J/K

Question 2

During the volcanic eruption of Mt. Pelee in 1902, an incredibly hot burning cloud rolled down the mountain and incinerated the town of Saint-Pierre. From the damage done, the temperature in the cloud was estimated at 700C. If the air temperature was 20C and a mole of air is 29 grams, estimate the molecular weight of the gas in the burning cloud that made it heavier than the surrounding air. (As a follow-on, estimate the most probable composition of the cloud. Some typical volcanic gases are H2S, SO2, H2SO4, CO2, NO.)


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nothere

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Reply #1 on: Jul 28, 2018
Answer to Question 1

1 895 m/s, 245 m/s

Answer to Question 2

96, H2SO4 (sulfuric acid)


Sufayan.ah

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


nothere

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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