The Figure Shows Two Balloons

question 28

Multiple Choice

The figure shows two balloons.They are at the same temperature and pressure, and contain equal volumes of gas, but one is floating, and the other is not.The reason for this behavior is that:

• A)the balloon that is not floating has the molecules more closely spaced than the other.
• B)the balloon that is not floating has a gas with a higher molar mass than that of air.
• C)the balloon that is floating has molecules with more kinetic energy.
• D)the balloon that is not floating has molecules that have slowed down, since it was filled before the floating balloon.
• E)the balloon that is floating has a more dense gas than the one that is not floating, so it holds up the balloon better.

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Definitions:

Content Morpheme

A type of morpheme that carries semantic content and contributes to the meaning of a word, as opposed to grammatical function.

Functional Phoneme

The smallest unit of sound in a language that can change the meaning of a word, contributing to the linguistic function of spoken language.

Morpheme

The smallest significant unit of meaning in a word (e.g., the word boys has two morphemes, boy and -s).

Phoneme

The smallest significant unit of sound in a language. Alphabetic characters roughly correspond to phonemes (e.g., apt, tap, and pat are all made up of the same phonemes).