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:

True Ribs

The first seven pairs of ribs that are directly attached to the sternum through their own costal cartilages, providing protection to the thoracic organs.

Sternal Break

A fracture or break in the sternum, often a result of a direct blow or trauma to the chest area.

Xiphoid Process

The smallest and lowermost part of the sternum, providing attachment points for muscles and ligaments of the abdomen.

Sternal Angle

The sternal angle, or Angle of Louis, is the anatomical landmark formed by the joint between the manubrium and the body of the sternum, often used as a reference point for rib identification.