Chapter 20 Gasses
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Chapter 20 Gasses
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Chapter 20 Gasses. The Atmosphere and Its Pressure. Vocabulary. Barometers. Boyle’s Law and Ideal Gas Law. Misc. $100. $100. $100. $100. $100. $200. $200. $ 200. $200. $200. $300. $300. $300. $300. $300. $400. $400. $400. $400. $400. $500. $500. $500. $500. $500. - PowerPoint PPT Presentation
Transcript of Chapter 20 Gasses
Chapter 20Gasses
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The Atmosphere
and Its Pressure
Vocabulary BarometersBoyle’s Law
and Ideal Gas Law
Misc.
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The Atmosphere And It’s Pressure
$100This state of matter has molecules tat
are far apart and force free
What are Gasses?
The Atmosphere and It’s Pressure
$200Pressure is the product of force divided
by this.
What is Area?
The Atmosphere and It’s Pressure
$300This body has no definite surface and
it’s density varies with height.
What is the atmosphere
?
The Atmosphere and It’s Pressure
$400This unit is the amount of air pressure
under normal conditions, or 105 Pa.
What is an atmosphere?
The Atmosphere and It’s Pressure
$500A couch weighs 1030 N. It sits on a
platform that is 10m x 20m. How much pressure is the couch exerting
on the platform?
5.15 Pa
Vocabulary
$100This is an instrument used for
measuring atmospheric pressure.
What is a barometer?
Vocabulary
$200Liquids and gasses are both considered this six letter word.
What is fluids?
Vocabulary
$300This states that the product of pressure and volume for a given
mass of gas is a constant as long as temperature is constant.
What is Boyle’s Law?
Vocabulary
$400This law states that when the speed of
a fluid increases, the pressure drops.
What is Bernoulli’s Principle?
Vocabulary
$500This is the measure of the average kinetic energy of the particles in a
substance.
What is Temperature?
Barometers
$100A barometer is used to measure this
weather property.
What is Atmospheric Pressure?
Barometers
$200A simple barometer uses this element
(much like a thermometer) because of it unique pressure properties.
What is mercury?
Barometers
$300There are two types of
barometers, the simple barometer and this “without liquid”
barometer.
What is Aneroid?
Barometers
$400This substance could e used for a barometer, however the density is
much lower and would require a 10.3 m high tube.
What is water?
Barometers
$500. An altimeter is a special type of
aneroid barometer calibrated for this.
What is altitude?
Boyle’s Law & Ideal Gas Law
$100This is what N stands for in PV=NKBT.
What is Number of Molecules?
Boyle’s Law & Ideal Gas Law
$2001.38 x 10-23 J/K is known as this
constant or KB
What is Boltzmann’s Constant?
Boyle’s Law & Ideal Gas Law
$300Real gasses can be modeled after
these “perfect” gasses.
What are Ideal
gasses?
Boyle’s Law & Ideal Gas Law
$400Boyle’s Law states the relationship between pressure and this cubed unit
of measure.
What is volume?
Boyle’s Law & Ideal Gas Law
$500An oxygen bottle has an initial
pressure of 50 Pa with a volume of 300cm3. The air is then compressed into a volume of 230 cm3 . What is the new pressure exerted on the
bottle?
65.21 Pa
Misc.
$100Bernoulli’s Principle states that the pressure in a fluid decreases as the
fluid’s velocity does this.
What is Increases?
Misc.
$200Bernoulli’s principle is put into action on planes where the pressure above
the wing is higher than below it which produces an upward force
called this.
What is lift?
Misc.
$300This helps explain why pressure in tornadoes and hurricanes actually
have very low pressure.
What is Bernoulli’s Principle?
Misc.
$40099% of the atmosphere is below this
outermost layer made of mostly oxygen.
What is the O zone?
Misc.
$500A small piston on a lift has an area of .45 m2. A cement block weighing 13000 N sits on a rack mounted on
the large piston. The large piston has an area of 1.2 m2. How large a force must be applied to the small piston
to support the block?
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