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23 Cards in this Set

  • Front
  • Back
What is the amount of force that acts on a given area?
Pressure
What is the SI unit of pressure?
Pascal
What is another unit of pressure that is equal to 10 to the 5th power of pascals?
Bar
What is the typical pressure at sea level that is 760mm Hg high (1atm) ?
Standard Atmospheric Pressure
What is 760mm Hg equal to?
1atm
The volume of a fixed quantity of gas maintained at constant temperature is inversely proportional to the pressure.
Boyle's Law
The volume of a fixed amount of gas maintained at constant pressure is directly proportional to its absolute value.
Charles's Law
Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Avogadro's Hypothesis
The volume of a gas maintained at a constant temperature and pressure is directly proportional to the number of moles of the gas.
Avogadro's Law
PV = nRT
Ideal -- Gas Equation
What is a hypothetical gas whose pressure, volume, and temperature behavior is completely described by the ideal -- gas equation.
Ideal Gas
What is R in the ideal -- gas equation?
The gas constant.
What are the conditions 0 degrees Celsius and 1 atm referred to as?
Standard Temperature and Pressure
What is the pressure exerted by a particular component of a mixture of gases?
Partial Pressure
What is Dalton' observation that the total pressure of a mixture of gases equals the sum of the pressures that each would exert if it were present alone referred to as?
Dalton's Law of Partial Pressures
What is the dimensionless number that expresses the ratio of the number of moles of one component to the total number of moles in the mixture referred to as in the equation PV = nRT?
n
What is the explanation of pressure and temperature at the molecular level referred to as?
Kinetic -- Molecular Theory
What is the value of the speed, u, of molecules expressed as?
Root -- Mean -- Square (rms) speed
What is the escape of gas molecules through a tiny hole into an evacuated space called?
Effusion
What is the spread of one substance throughout a space or a second substance called?
Diffusion
The fact that the effusion rate of a gas is inversely proportional to the square root of its molar mass.
Graham's Law
What is the average distance traveled by a molecule between collisions called?
Mean Free Path
What is the equation of state for gases that modifies the Ideal -- Gas Equation to account for intrinsic molecular volume and intermolecular forces called?
van der Waals Equation