Question

temperature changes during changes of state of water
which of the following physical properties of water did thomas measure during his experiment?
boiling point and thermal conductivity
boiling point and solubility
melting point and solubility
melting and boiling point

Explanation:

The graph shows temperature changes during state - changes of water. Plateaus in the graph represent phase - change temperatures. The lower plateau is at 0°C (melting point), and the higher one is at 100°C (boiling point). There is no indication of thermal conductivity or solubility being measured.

Answer:

D. melting and boiling point