Assuming the Radius of Diatomic Molecules Is Approximately 1

question 54

Multiple Choice

Assuming the radius of diatomic molecules is approximately 1.0 × 10^-10 m, for what pressure will the mean free path in room-temperature (20°C) nitrogen be 4.6 m? The Boltzmann constant is 1.38 × 10^-23 J/K, Avogadro's number is 6.02 × 10²³ molecules/mole, and the ideal gas constant is R = 8.314 J/mol•K = 0.0821 L ∙ atm/mol ∙ K.

• A) 4.9 × 10^-8 atm
• B) 6.9 × 10^-8 atm
• C) 1.5 × 10^-7 atm
• D) 2.2 × 10^-7 atm

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Definitions:

Water Vapor

The gaseous phase of water, present in the atmosphere, which plays a critical role in the Earth's weather and climate systems.

Condensation

The process by which a vapor becomes a liquid; the opposite of evaporation.

Liquid Water

The state of water that is neither solid (ice) nor gas (vapor), commonly found in rivers, lakes, and oceans.

More Energetic

Characterized by or possessing a high level of energy or vitality.