What Is the Mean Free Path of Molecules in an Ideal

question 35

Multiple Choice

What is the mean free path of molecules in an ideal gas in which the mean collision time is 3.00 × 10^-10 s, the temperature is 300 K, and the mass of the molecules is 6.00 × 10^-25 kg? Assume that the molecules are moving at their root-mean-square speeds. The Boltzmann constant is 1.38 × 10^-23 J/K.

• A) 7.22 × 10^-8 m
• B) 4.32 × 10^-8 m
• C) 9.19 × 10^-8 m
• D) 1.39 × 10^-8 m
• E) 6.71 × 10^-8 m

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Definitions:

Monocular Cues

Powerful depth cues available from the image in one eye, either the right or the left.

Binocular Cues

Depth cues that depend on the combination of the images in the left and right eyes and on the way the two eyes work together.

Gestalt Principle

A theory that proposes humans naturally perceive objects as organized patterns and wholes, rather than as separate components.

Principle Of Closure

A Gestalt psychology principle suggesting that individuals perceive objects as whole, even when they are incomplete because our minds fill in missing details.