Thermo Quiz 3 2017

All substances expand upon freezing - like water.

False

Liquid nitrogen at 1 atmosphere of pressure boils at a temperature of -196 degC. Increasing pressure will lower the boiling point even further.

False

Sublimation is the process by which a solid transitions directly to the liquid phase.

False

In transitioning from a gas to a liquid, the gas must release energy as it condenses. This energy release is referred to as latent heat of vaporization.

True

Property diagrams are used to illustrate changes in state due to a process.

True

The saturated liquid-vapor mixture state is a two-phase state where the substance as a liquid and a vapor co-exist in equilibrium.

True

The triple line is where a substance exists in all three phases. The states on the triple line of a substance have the same pressure and temperature but different specific volumes.

True

A mixture of ice and liquid water can be considered a pure substance because both phases have the same chemical composition.

True