Phase Changes: If 2

question 67

Multiple Choice

Phase changes: If 2.0 g of water at 0.00°C is to be vaporized, how much heat must be added to it? The specific heat of water is 1.0 cal/g ∙ K, its heat of fusion is 80 cal/g, and its heat of vaporization is 539 cal/g.

• A) 1100 cal
• B) 1100 kcal
• C) 1200 cal
• D) 1300 cal
• E) 1500 cal

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Definitions:

Substance Use Disorder

A problem characterized by loss of control over usage, social impairment, risky use, and tolerance and withdrawal symptoms.

Oppositional Defiant Disorder

A psychological disorder characterized by a persistent pattern of defiant, disobedient, and hostile behavior towards authority figures.

Impulse Control

The ability to resist or delay an impulse, drive, or temptation to act.

Rapid Eye Movement

A phase of sleep characterized by rapid movements of the eyes, low muscle tone, and the propensity to dream vividly.