Which Gas Has Molecules with the Greatest Average Molecular Speed

question 84

Multiple Choice

Which gas has molecules with the greatest average molecular speed at 25°C?

• A)CH₄
• B)Kr
• C)N₂
• D)CO₂
• E)Ar

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Definitions:

\(\sum _ { i = 0 } ^ { 5 }\)

A summation notation representing the addition of a sequence of numbers, from the index i equals 0 to i equals 5.

\(n ^ { 2 }\)

Represents the square of a number n, calculated as n multiplied by itself.

\(( n - 2 ) !\)

The factorial of the quantity \(n-2\), representing the product of all positive integers less than or equal to \(n-2\).

\(n ^ { 2 }\)

An algebraic expression indicating the square of the variable n.