Practice Test: Chapter 12

Matching skip

Short Answer skip

1. kinetic molecular theory
   
2. Postulates of Kinetic Molecular Theory of Gases
   
3. Atmospheric pressure
   
4. Dalton's law
   
5. Boyle's law
   

Multiple Choice skip

1. standard pressure
   1. Gases consist of tiny particle. these particles are so small compared to space between them, that volume of particle are negligible. The particles are in constant random motion, collisions cause the pressure. do not attract or repel. average kinetic energy proportional to Kelvin temperature of the gas.
   2. R
   3. when one increase and the other decreases
   4. by Torricelli experiment, at sea level the height of the mercury was 760mm (760mmHg), but not always because temperature can change
   5. k is a constant at a specific temperature for a given amount of gas (PV=k)
2. partial pressure
   1. the pressure that the gass woud exert if it were alone in the container
   2. energy associated with the motion of a particle, KE=.5mv2. (m=mass, v=velocity)
   3. simple model that attempts to explain the behavior of an ideal gas
   4. dircect proportionality between volume and temperature (in kelvin) is represented by the equation V/T=b
3. combined gas law
   1. a gas at constant temperature and pressure, the volume is directly proportional to the number of moles of gas (V/n=a)
   2. PV=nRT (PIVNERT)
   3. Varies in temperature and altitude
   4. P1*V1/T1=P2*V2/T2
4. ideal gas
   1. gas that obeys PV=nRT, behaves ideally, volume of individual gas particle is not very important, forces among particles is not important
   2. pounds per square inch used to measure tire pressure (1atm = 14.69 psi)
   3. device that measures atmospheric pressure (Torricelli)
   4. k is a constant at a specific temperature for a given amount of gas (PV=k)
   5. Varies in temperature and altitude
5. Charles law
   1. R
   2. simple model that attempts to explain the behavior of an ideal gas
   3. height of the mercury column that the gas pressure can support (i standard atmosphere = 760 Torr
   4. dircect proportionality between volume and temperature (in kelvin) is represented by the equation V/T=b
   5. PV=nRT (PIVNERT)

True or False skip

1. psi
   pounds per square inch used to measure tire pressure (1atm = 14.69 psi)

   True   False

2. kinetic energy
   height of the mercury column that the gas pressure can support (i standard atmosphere = 760 Torr

   True   False

3. barometer
   device that measures atmospheric pressure (Torricelli)

   True   False

4. mm Hg (millimeters of mercury), Torr
   simple model that attempts to explain the behavior of an ideal gas

   True   False