Imagine That You Fill a Shallow Tray with Water and Place

question 10

Multiple Choice

Imagine that you fill a shallow tray with water and place a drop of red ink in one end of the tray and a drop of green ink in the other end. Which of the following is TRUE at equilibrium?

• A) The red and green ink do not mix at all.
• B) The concentration of each ink is higher at one end of the tray than at the other end.
• C) The red ink is uniformly distributed in one half of the tray, and the green ink is uniformly distributed in the other half of the tray.
• D) No predictions can be made without knowing the size of the ink molecules.
• E) The red and green inks are both uniformly distributed throughout the tray.

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Definitions:

Circadian Rhythm Disorder

A sleep-wake disorder characterized by a mismatch between a person’s sleep-wake pattern and the sleep-wake schedule of most other people.

Erratic Sleep Cycle

An irregular sleep pattern that deviates from the traditional sleep-wake cycle, often leading to sleep disturbances and potential health issues.

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.

Psychophysiological Disorder

A physical illness that is thought to be caused or exacerbated by mental factors such as stress.