Chapter 8: Gases and Laws Flashcards
A ____ consists of small particles that move rapidly in straight lines
Gas
Does gas move slowly in zig-zag lines?
No
A ____ consists of small particles that have essentially no attractive forces
gas
A ____ consist of small particles that are very far apart
Gas
A _____ consists of small particles that have very small volumes compared the the volume of the container they occupy
gas
A ____ consists of very small particles that have kinetic energies that increase with an increase in temperature
gas
Do gases have kinetic energies that increase with an increase in temperature?
Yes
The _____ of a gas increases with an increase in temperature at a constant pressure
Volume
The _______ of a gas relates to the average kinetic energy of the molecules and is measured in the Kelvin temperature scale
Temperature
When the temperature of a gas is ______, the molecules have fewer collisions
Decreased
When the temperature of a gas is ________, the molecules have more collisions
Increased
______ is a measure of the gas particle collisions with sides of a container and is measured in mmHg, Torr, and atm
Pressure
A _____ measures the pressure exerted by the gases in the atmosphere
barometer
A ______ indicates the atmospheric pressure as the heigh in millimeters of the mercury column
barometer
760 mmHg = ___ atm = 760 Torr
1 atm
______ _____ is the pressure exerted by a column of air from the top of the atmosphere to the surface of earth. It decreases as altitude increases (1atm at sea level)
Atmospheric pressure.
The inverse relationship between the pressure and volume of a gas is ____ law
Boyle’s
What is Boyle’s law?
The inverse relationship between the pressure and vol. p1v1=p2v2
When _____ increases, the pressure decreases. (if the temperature and moles of gas remain constant)
Volume
Volume _______ as pressure______
volume increases as pressure decreases
What is Charle’s Law?
If the amount and pressure of the gas is held constant, the volume of the container will increase with an increase in temperature (v1/T1 = v2/T2)
In ______ law, the kelvin temperature of gas is directly related to the volume. The pressure and models of gas are constant. When the temperature of a sample of gas increases, it’s volume increases at a constant temperature
Charle’s law
Solve equations using all the laws
:)
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