The Mean Free Path of an Oxygen Molecule Is 2

question 43

Multiple Choice

The mean free path of an oxygen molecule is 2.0 × 10^-5 m, when the gas is at a pressure of 120 Pa and a temperature of 275 K. The molecular mass of oxygen is 32.0 g/mol and 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. Assuming that the molecules are moving at their root-mean-square speeds, the average time interval between collisions of an oxygen molecule is closest to

• A) 20 ns.
• B) 43 ns.
• C) 95 ns.
• D) 200 ns.
• E) 420 ns.

---

Definitions:

Ethical Culture

The set of shared attitudes, values, goals, and practices that characterizes an institution or organization, focusing on the ethical aspects.

Office Of Internal Governance

A designated office within an organization responsible for ensuring compliance with laws, regulations, and internal policies, often overseeing risk management and ethical conduct.

Organization Interest Principle

A principle emphasizing that the actions and decisions within an organization should prioritize the collective interests and goals of the organization.

Organizational Innovation Principle

An approach or set of guidelines intended to foster creativity, encourage the adoption of new ideas, and facilitate change within an organization.