Gasses Flashcards
(18 cards)
A measure of the force exerted on a unit area
Pressure
Corresponds to the typical pressure at sea level
Standard Atmospheric Pressure
Device used to measure pressures of enclosed gases
Manometer
4 variables required to define the physical condition of a gas
Temperature
Pressure
Volume
Amount of gas- moles
States that the volume of a fixed quantity of gas maintained at constant temperature is inversely proportional to the pressure
Pressure - Volume Relationship - Boyle’s Law
The volume of a fixed amount of gas maintained at constant pressure is directly proportional to its absolute temperature
Temperature - Volume Relationship - Charles Law
States that the pressure of a given mass of gas varies directly with the Kelvin temperature
Temperature - Pressure Relationship- Gay Lussacs Law
The volume of a gas maintained at constant pressure is directly proportional to the number of moles to the gas
Quantity - Volume Relationship: Avagadros Law
A hypothetical gas whose pressure, volume, and temperature behavior are described by the ideal gas equation
Ideal Gas
Allows us to calculate gas density from the molar mass, Pressure, and temperature of the gas
Ideal-Gas Equation
Gases consist of large numbers of molecules that are in continuous random motion
Kinetic-Molecular Theory
The escape of gas molecules through a tiny hole into an evacuated space
Effusion
The spread of one substance throughout a space or throughout a second substance
Diffusion
States that the rate of effusion of a gas is inversely proportional to the square root of its molecular weight
Graham’s Law of Effusion
The total pressure of a mixture of gases equals the sum of the pressures that each would exert if were present alone
Dalton’s Law is Partial Pressure
The pressure exerted be a particular component of a mixture of gases
Partial Pressure
A dimensionless number that expresses the ratio of the number of moles of one component to the number of moles in the mixture
Mole Fraction
The average distance traveled by a molecule between collisions
Mean free path
