Which of the Following Statements Is Correct

question 35

Multiple Choice

Which of the following statements is correct?

• A)The phase change from solid to liquid is exothermic.
• B)Liquids boil at lower than normal temperatures in Death Valley, since it is below sea level.
• C)A substance with a low boiling point would be expected to have a relatively low vapor pressure at a low temperature.
• D)The phase change from liquid to gas is exothermic.
• E)When a substance condenses, heat energy is given off.

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Definitions:

Carbonyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom, commonly found in aldehydes and ketones.

Polarized

Refers to a distribution of electrical charge leading to positive and negative poles within a molecule or chemical bond.

Electrophile

A chemical species that is attracted to electrons and typically accepts an electron pair to form a bond with a nucleophile.

Nucleophile

A chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction.