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- 1. Multiple ChoiceAt what temperature do nitrogen molecules move fastest?350 K300 K250 K200 K
- 2. Multiple ChoicePressure is caused by ______.gravity.gas molecules colliding with each other.gas molecules colliding with surfaces of the container.gas molecules reacting with each other.
- 3. Multiple ChoiceWhat happen to the energy of the system when the molecules collide with each other?Energy increasesEnergy decreasesEnergy remains the same
- 4. Multiple ChoiceGas molecules can easily be compressed because ___________.gas molecules are softgas molecules are far apartgas molecules follow the shape of the container
- 5. Multiple ChoiceThe theory that states that all particles in matter are constantly moving; helps to describe the phases of matterbehavior of gaseskinetic theorymatter matterstemperature
- 6. Multiple ChoiceThe higher the average kinetic energy the __________________the higher the volumethe higher the massthe higher the temperaturethe higher the density
- 7. Multiple ChoiceHow do gas molecules move?in an orderly fashionconstantly and randomlyin straight line pathsin a circular motion
- 8. Multiple ChoiceGases are described as having adefinite shape and indefinite volumeindefinite shape and indefinite volumedefinite shape and definite volumeindefinite shape and definite volume
- 9. Multiple ChoiceCollisions between gas particles are said to be "elastic" because _________________________.they have a stretchy waistbandkinetic energy is lost between particleskinetic energy is not lost between particles and is instead transferredparticles move in a straight line
- 10. Multiple ChoiceWhich of the following explains why gases are less dense than solids?Gases have faster moving particles that are very close together.Gases have slow moving particles that are very close together.Gases have faster moving particles that are far apart.Gases have slow moving particles that are close together.
- 11. Multiple ChoiceThe main idea of the Kinetic Molecular Theory is that all molecules havemassmotion/movementvolumemoles
- 12. Multiple ChoiceGas particles are in _______________ motion.constantrandomconstant and randomperpetual
- 13. Multiple ChoiceThe intermolecular forces between gas molecules arevery strongextremely importantnot significant at normal temperatures and pressures
- 14. Multiple ChoiceA gas will always _____________ to fill its container.expandcontractheat upcool down
- 15. Multiple Choice
Gases are the only phase of matter that is ________________ because there is a large amount of space between molecules.DifferentialfluidCompressiblemolar - 16. Multiple ChoiceThe key word for pressure ismotioncollisionsconcentrationenergy
- 17. Multiple ChoiceHigher pressure means ______________ collisions between gas particles and the walls of their container.morelessfasterharder
- 18. Multiple ChoiceFor gas problems in Chemistry and Physics, temperature must always be inKelvinDonvanCelciumFarenheit
- 19. Multiple ChoiceHow do you convert degrees C to K?Add 273Subract 273call 911
- 20. Multiple ChoiceAbsolute zero is0 Kwhere there is no molecular movementthe coldest temperature possibleall of these
- 21. Multiple ChoiceSTP stands forSignificant Technology ProblemsSulfur Technecium and PhosphorousSolid Tectonic PlaceboStandard Temperature and Pressure
- 22. Multiple ChoiceGas particles are elastic and do not attract each other.The kinetic energy of gas is dependent on temperatureEnergy is not lost when gas particles collide with each other or with the walls of the container.All of the above
- 23. Multiple ChoiceWhich of the following is true if each of the flasks shown has the same volume and temperature?Flask 1 contain the most moleculesFlask 2 contain the most moleculesFlask 3 contain the most moleculesFlask 4 contain the most molecules
- 24. Multiple ChoiceConsidering that each of the flasks shown in the diagram contains the same number of gas particles and has the same volume, which of the following is true?Flask 1 contain the least pressureFlask 2 contain the least pressureFlask 3 contain the least pressureFlask 4 contain the least pressure
- 25. Multiple ChoiceSince all flask have same amount of gas, flask 1 has the least pressureSince all flask have same amount of gas, flask 2 has the least pressureSince all flask have same amount of gas, flask 3 has the least pressureSince all flask have same amount of gas, flask 4 has the least pressure
- 26. Multiple ChoiceWhen a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because theair molecules hit the walls of the tire less frequentlyrubber in the tires reacts with oxygen in the atmosphereair molecules speed up and collide with the tire walls more oftenair molecules diffuse rapidly through the walls of the tire.
- 27. Multiple ChoiceWhen a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because theair molecules hit the walls of the tire less frequentlyrubber in the tires reacts with oxygen in the atmosphereair molecules speed up and collide with the tire walls more oftenair molecules diffuse rapidly through the walls of the tire.
- 28. Multiple ChoiceThe energy of an object as it is in motion is defined asKinetic TheoryKinetic energyPotential energyElectric energy
- 29. Multiple ChoiceTrue or False? Particles of a gas are in constant, random, straight-line motion.TrueFalse
- 30. Multiple ChoiceTrue or False? Gas particles are highly attracted to each other.TrueFalse
- 31. Multiple ChoiceTrue or False? Gas particles have significant volume.TrueFalse
- 32. Multiple ChoiceTrue or False? The collisions between gas particles may be described as perfectly elastic.TrueFalse
- 33. Multiple ChoiceTrue or False? At STP, two samples of a gas will have the same number of particles if they have the same volume.TrueFalse
- 34. Multiple ChoiceTrue or False? Real gases behave the most like ideal gases when they have a low temperature.TrueFalse
- 35. Multiple ChoiceTrue or False? Real gases behave more like ideal gases when they are under conditions of low pressure.TrueFalse
- 36. Multiple ChoiceWhich of the following gases will have the same number of particles at 1.3L of CH4 at STP?1.3L of CH4 at 1 atm and 100°C1.3L of CO2 at 1 atm and 0°C1.3L of He at 101.3 atm and 0K2.6L of CH4 at atm and O°C
- 37. Multiple ChoiceWhat is Avogadro's Number?3.1415926535922.42736.02 x 1023
- 38. Multiple ChoiceAccording to Avogadro, how many particles will be in 22.4L of any gas at STP?1 dozen1 mole1 atm1 google
- 39. Multiple ChoiceWhich 2 real gases behave the most like ideal gases, meaning that they conform the most to the postulates of the KMT?Helium and HydrogenKrypton and XenonCarbon Dioxide and OxygenChlorine and Fluorine
- 40. Multiple ChoiceWhen air is pumped into a deflated tire, what happens to the pressure inside the tire?DecreaseIncreasesRemains the same
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