The Mean Free Path of a Molecule Is 2

question 69

Multiple Choice

The mean free path of a molecule is 2.25 × 10^-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm) . What is the mean free path if the diameter of the molecule is doubled?

• A) 0.23 × 10^-7 m
• B) 0.45 × 10^-7 m
• C) 0.56 × 10^-7 m
• D) 0.75 × 10^-7 m
• E) 1.13 × 10^-7 m

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Definitions:

Profitability Index

A financial tool used to measure the relative profitability of an investment, calculated as the present value of future cash flows divided by initial investment.

Internal Rate Of Return

A discount rate that makes the net present value (NPV) of all cash flows from a particular project equal to zero.

Preference Decisions

Decisions made in business or personal finance that reflect a choice or priority among various alternatives, often based on factors such as risk, return, or personal values.

Internal Rate Of Return

A financial metric used to estimate the profitability of potential investments, calculating the interest rate at which the net present value of all the cash flows (both positive and negative) from a project or investment equals zero.