True or False: An azeotrope mixture does not have a temperature glide.

• A. True
• B. False
• C. Sometimes
• D. It varies

Answer: (A)

The statement that an azeotropic mixture does not have a temperature glide is true. An azeotrope is a mixture of two or more liquids that has a constant boiling point and composition throughout the distillation process. This means that when the azeotropic mixture is heated, it vaporizes and condenses at a specific temperature without any change in composition.

Temperature glide refers to a gradual change in temperature as a refrigerant absorbs or releases heat during phase changes. Azeotropes, by their nature, behave differently because there is no variation in boiling point as they transition from liquid to vapor. The absence of this glide is a key feature of azeotropic behavior, making them distinct from non-azeotropic mixtures that can exhibit varying temperatures during phase changes. Therefore, the assertion that an azeotropic mixture does not have a temperature glide holds true.