• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/40

Click to flip

### 40 Cards in this Set

• Front
• Back
 What is pressure? Force/area What is force? mass x acceleration What is area? pie x r squared What is the definition of pressure? the force of collision of gaseous particles with a surface per unit area what is the si unit for force? newton=kg m s-2 what is the si unit for pressure? pascal=1 Pa=1 N/m2=kg m/ s^2/m^2 What is atmospheric pressure? defined as the pressure exerted by the earth's atmosphere What is standard atmospheric pressure? (1 atm)-pressure that supports a column of mercury exactly = to 760 mm how many mmHg, torr, and Pascals do one atmosphere =? 760 mmHg, 760 torr, and 101.325 Pa What is a barometer? a device used for measuring atmospheric pressure What is a manometer? a device used to measure the pressure of gases other than the atmosphere What is a closed and open manometer? closed manometer-used to measure pressures below atmospheric pressure, open-used to meausre What is boyle's law? P1V1=P2V2 What is Charles' and Gay-Lussac's laws? V1 = V2 -- -- T1 T2 What is the general gas law? P1V1 = P2V2 ---- ---- T1 T2 What is avogadro's law? dependence of volume on # of moles at constant T and P What is the law of combining volumes? in a chemical reaction at the same T and P, the volume ratio of gases is equal to the mole ratio What is the definition of boyle's law? pressure of a fixed amount of gas at a constant T is inversely proportional to the volume of gas What is the definition of the Charles's and Gay-Lussac's laws? volume of a fixed amount of gas at a constant P is directly proportional to the absolute T or the gas What is an hypothetical gas? a hypothetical gas, whose pressure-volume temp. behavior is completely accounted for by the ideal gas equation What is an ideal gas? no forces between atoms, neglect volume of individual atoms in comparison to volume of container, the chemical identity of gas is unimportant in describing its behavior, all gases are created equal What does the # of moles = to? mass/Molar Mass What is the formula for Molar mass? dRT/P What is partial pressure? pressure of individual components in a mixture What is Dalton's Law of Partial Pressures? the total pressure of a mixture of gases is equal to the sum of the pressures that each gas would exert if it were present alone What is the formula for partial pressure? Pi= n1 RT -- V What is the total pressure formula? Pt=the sum of the partial pressures What is the definition of a mole fraction? a dimensionless number that expresses the ratio of the # of moles of one component to the # of moles of all components present What is the formula for mole fraction? Xi=ni -- nT What is the formula for partial pressures? Pi=XiPt What is the formula for gas collected over water? Pt=Pi + Ph20 Does water vapor increase or decrease with temperature? increase with increased temp. What is the Kinetic Molecular theory of gases? a theory developed by Boltzman and Maxwell to explain the physical properties of gases in terms of their molecular motion. What is the formula for kinteic energy? energy of motion, KE=1/2 mu^2 What are the units of J for kinetic energy? J=1 kg m^2 s^-2 What is the average kinetic energy of a molecule formula? __ ____ KE= 1/2mu^2 What is the formula for the average kinetic energy per mole? ____ ___ KEmol = 1/2 Mu^2 How does temperature relate to the average kinetic energy for an ideal gas? they are directly proportionate what does the average kinetic energy per mole depend on?and what is the formula? temperature, __ KEmol=3/2 RT What is the relationship of the mean square speed to the temperature and the molar mass, M? __ u^2= 3 RT -- M