The conditions at which the solid, liquid, and gaseous phases of a substance can exist in equilibrium with one another is called a. boiling point. b. freezing point. c. sublimation point. d. triple point.
The answer is: [D]: triple point . ______________________________________________________ Answer choice [A]: boiling point; refers to the temperature at which the equilibrium vapor pressure of the liquid equals the atmospheric pressure. ___________________________________________ Answer choice [B]: freezing point; refers to the temperature at which the solid and liquid are at equilibrium at one atm (1 ATM pressure). ___________________________________________ Answer choice [C]: sublimation point; refers to a change directly from the solid to the gaseous state without becoming liquid. ____________________________________________________