Which one of the following quantities is generally not obtainable from a single heating or cooling curve of a substance, measured at atmospheric pressure?
A)Melting point
B)Boiling point
C)Triple point
D)Heat of fusion
E)Heat of vaporization

Question

Quizplus · Accepted Answer

The triple point of a substance is the temperature and pressure at which the three phases (solid, liquid, and gas) coexist in equilibrium. This point cannot be determined from a single heating or cooling curve, as it requires the examination of the substance's behavior at multiple pressure levels. The melting point, boiling point, heat of fusion, and heat of vaporization can be obtained from a single heating or cooling curve.

Which One of the Following Quantities Is Generally Not Obtainable