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:

Pericardium

The fibrous sac that encloses the heart, providing it with protection and a fixed position within the thorax.

Myocardium

The thick, muscular layer of the heart wall responsible for the heart's contracting action.

Endocardium

The innermost layer of tissue that lines the chambers of the heart, playing a critical role in the heart's function.

Pulmonary Vein

A blood vessel that carries oxygenated blood from the lungs to the left atrium of the heart.