Which of the Following Statements Is Correct

question 9

Multiple Choice

Which of the following statements is correct?

• A)At the melting point of a substance, the solid, liquid, and gas phases are all in equilibrium.
• B)The freezing point and the melting point of a substance are the same.
• C)There is no fundamental difference in the melting process for covalent substances and ionic substances.
• D)In order for a substance to go from the gas phase to the liquid phase, it must absorb energy from the surroundings.
• E)In order for a substance to go from the liquid phase to the gas phase, it must give off energy to the surroundings.

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Definitions:

Substitute

An alternative or replacement for something else, often found or used when the original is unavailable or unsuitable.

Extend

To prolong the duration of something or to reach out in space or time.

Course of Dealing

A pattern of actions between parties that establishes a common basis for understanding in future transactions.

Usage of Trade

Established customs and practices in a particular industry that are considered binding or enforceable in business transactions.