Which Set of Gases Is Listed from Highest to Lowest

question 5

Multiple Choice

Which set of gases is listed from highest to lowest root-mean-square speed at 25°C?

• A) Kr > CO₂ > NO₂ > SF₆
• B) SF₆ > NO₂ > CO₂ > Kr
• C) SF₆ > Kr > CO₂ > NO₂
• D) SF₆ > Kr > NO₂ > CO₂
• E) CO₂ > NO₂ > Kr > SF₆

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Definitions:

Proximity

The physical or psychological closeness between people or objects, which can influence relationships and interactions.

Saturation Effect

A phenomenon whereby a system's performance levels off or declines after reaching a certain point, despite continued increases in input or effort.

Birds-of-a-Feather Effect

The phenomenon that people tend to form relationships and bond with others who have similar characteristics, such as interests and values.

Foot-in-the-Door Effect

A psychological phenomenon where agreeing to a small request increases the likelihood of agreeing to a larger request later.