Fundamentals of Vapor Pressure Solution Thermodynamics and Psychrometric Analysis

These flashcards cover key vocabulary and concepts related to vapor pressure solution thermodynamics and psychrometric analysis.

Vapor Pressure

A thermodynamic property that measures the volatility of the component(s) in a solution.

Clausius-Clapeyron Equation

An equation that relates the vapor pressure of a substance to its temperature and latent heat of vaporization.

Antoine Equation

A semi-empirical equation used to estimate the vapor pressure of pure substances based on temperature.

Raoult’s Law

States that the partial vapor pressure of each component in a solution is equal to the vapor pressure of the pure component multiplied by its mole fraction in the solution.

Henry’s Law

Relates the solubility of a gas in a liquid to the partial pressure of that gas in the vapor phase above the liquid.

Psychrometric Chart

A graphical representation of the physical and thermal properties of moist air.

Wet Bulb Temperature

The lowest temperature that can be obtained by evaporative cooling, indicating the humidity of the air.

Saturation Humidity

The maximum amount of water vapor that air can contain at a given temperature and pressure.

Dew Point Temperature

The temperature at which air becomes saturated with moisture and water vapor begins to condense.

Dynamic Equilibrium

A state in which the rate of vaporization equals the rate of condensation, leading to constant vapor pressure.

Triple Point

The specific temperature and pressure at which three phases of a substance coexist in thermodynamic equilibrium.

Critical Point

The temperature and pressure at which the gas and liquid phases of a substance become indistinguishable.

Vaporization Curve

A curve on a phase diagram that separates the liquid and vapor phases.

Adiabatic Process

A process in which no heat is transferred to or from the system.

Molar Volume

The volume occupied by one mole of a substance, typically expressed in liters per mole.

Mole Fraction

The ratio of the number of moles of a component to the total number of moles in the mixture.

Vapor Pressure Data

Information regarding the pressure exerted by a vapor in thermodynamic equilibrium with its liquid or solid phase.

Specific Volume

The volume occupied by a unit mass of a substance, usually expressed in m³/kg.

Latent Heat of Vaporization

The amount of energy required to convert a unit mass of a substance from liquid to vapor at constant temperature.

Phase Equilibrium

The condition in which two or more phases of a substance coexist at balance.