Heat Is Added to a Substance, but Its Temperature Does

question 51

Multiple Choice

Heat is added to a substance, but its temperature does not rise. Which one of the following statements provides the best explanation for this observation?

• A)The substance must be a gas.
• B)The substance must be a non-perfect solid.
• C)The substance undergoes a change of phase.
• D)The substance has unusual thermal properties.
• E)The substance must be cooler than its environment.

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Definitions:

Economic Situation

The state of economic conditions and variables in a specific region or globally at a particular time, including factors like GDP growth, employment rates, inflation, and market stability.

Class

A system of ordering society whereby people are divided into sets based on perceived social or economic status.

Party

A political organization or group that seeks to achieve power within a governmental system, often united by shared ideologies or goals.

Proletariat

Refers to the class of wage-earners in a capitalist society whose only significant material value is their labour-power.