First Law of Thermodynamics: When a Fixed Amount of Ideal

question 27

Multiple Choice

First law of thermodynamics: When a fixed amount of ideal gas goes through an isobaric expansion,

• A) its internal (thermal) energy does not change.
• B) the gas does no work.
• C) no heat enters or leaves the gas.
• D) its temperature must increase.
• E) its pressure must increase.

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Definitions:

Hypothalamus

A region of the brain that controls an enormous number of bodily functions including emotions, the autonomic nervous system, and the endocrine system.

Autonomic Nervous System

The part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.

Sterilizing (Autoclave)

The process of using an autoclave to eliminate all forms of microbial life, including spores, by applying steam under pressure.

Celsius

A scale for measuring temperature where water freezes at 0 degrees and boils at 100 degrees under standard conditions.