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Chem

Chapter 11

QuestionAnswer
Pressure is calculated by p=force/area
straw work because sucking creates a pressure difference true
As we climb a mountain to a higher altitude, we experience a pressure decrease true
Kinetic molecular theory model for understanding behavior gases
Gas particles lose energy every time they collide with each other or the container wall false
As you increase the temperature you increase the average energy of the gas particles True
gases fill the entire volume of their container true
The expected order of density for matter is gases < liquids< solids true
Kinetic Molecular Theory? Gases are compressible because the volume taken up by the has is almost entirely open space Gases assume the shape and volume of their container because they are in constant straight-line motion Gases have a low density because there is so much empty
You may feel effect of drop is pressure as pain your ears true
Pressure depends on how many gas particles are in a container true
The unit of pressure known as the atmosphere (atm) is defined as the average pressure found at the top of Mount Everest false
1 atm is equal to 760 mm Hg 760 torr 101,325 pa 14.7 psi
The conversion factor for pressure is 1 mm Hg = 1 atm false it is 760 mm Hg
Boyles law assumes constant temperature and constant number of gas particles
Boyles law is expressed as P1V1=P2V2
What is standard temperature and pressure 273.15 K and 1.00 atm
As the temperature decreases what can be said about a sample of gas particles the average speed of the gas particles will decrease because
Volume of gas increases at constant pressure with ---- temperature increasing
Charles law is expressed as V1/T1=V2T2
Combined gas law is P1V1/T1=P2V2/T2
Avogadro's law V1/n1=V2/n2
What happens to the volume of a gas when you double the number of moles of gas while keeping the temperature and pressure constant? The volume doubles
For ideal gas, which of the following pairs of variables are inversely proportional to each other P, V
What is the major component of the air we breathe? Nitrogen
Created by: user-1984338
 

 



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