When a Gas Expands Adiabatically

question 24

Multiple Choice

When a gas expands adiabatically,

• A) the internal energy of the gas decreases.
• B) the internal energy of the gas increases.
• C) there is no work done by the gas.
• D) work is done on the gas.
• E) heat flows out of the system.

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Definitions:

Parallel Forms Validity

The degree to which two different forms of a test measure the same attributes or content.

Measure

A method or tool used to assess, quantify, or determine the level or degree of a variable or attribute.

Validity

Validity refers to the extent to which a concept, conclusion, or measurement is well-founded and likely corresponds accurately to the real world.

Content Validity

The extent to which a test or measure covers the content it's supposed to cover.