An Unknown Gas Held in a 25

question 25

Multiple Choice

An unknown gas held in a 25.0 mL flask at 45°F exerts a pressure of 25 mTorr. Using this information with the ideal gas law, it is possible to determine ________

• A) the mass of the gas in the container.
• B) the identity of the gas in the container.
• C) the number of molecules of the gas in the container.
• D) the molecular geometry of the gas in the container.
• E) nothing more about the gas.

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Definitions:

Fight-or-flight Response

A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival, mobilizing the body for quick action.

Involuntary Reaction

A reflex or response to a stimulus that is automatic and not under the conscious control of an individual.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions, such as the heartbeat and digestion, and regulates basic body processes.

Inverted-U Hypothesis

A theory suggesting that there is an optimal level of arousal for performance, with both too little and too much arousal leading to poorer performance.