According to Kinetic-Molecular Theory, in Which of the Following Gases

question 94

Multiple Choice

According to kinetic-molecular theory, in which of the following gases will the root-mean-square speed of the molecules be the highest at 200 °C?

• A)NH₃
• B)N₂O
• C)O₂
• D)UF₆
• E)None. The molecules of all gases have the same root-mean-square speed at any given temperature.

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Definitions:

Paleozoic

An era in the geologic time scale, occurring from about 541 million to 252 million years ago, noted for the early development of life on Earth.

Crinoids

Marine animals belonging to the class Crinoidea, characterized by a mouth on the top surface surrounded by feeding arms, part of the echinoderm phylum.

Trilobites

Extinct marine arthropods with a segmented body and calcified exoskeleton, prevalent from the Cambrian to the Permian period.

Cambrian Explosion

The widespread, relatively rapid appearance of diverse types of hard-shelled organisms near the beginning of the Cambrian Period.