hw 4 - cc
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/43
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
44 Terms
do suction cups work in space?
no
Which of the following was not a consequence of the Great Oxygenation Event?
swarms of earthquakes
At Earth’s surface, atmospheric pressure is equivalent to
10 tons per square meter
What caused the Great Oxygenation Event 2.4 billion years ago?
cyanobacteria
Pressure decreases as we move downwards in a fluid like the ocean or atmosphere
false
roughly how thick is earth’s atmosphere?
10 km
roughly what fraction of earth’s atmosphere is oxygen?
20%
what is another name for cyanobacteria?
blue-green algae
do suction cups work in the deep ocean?
yes!
what is the most abundant molecule in earth’s atmosphere?
n2 (nitrogen)
by what process do cyanobacteria release oxygen?
photosynthesis
in the ocean and in the atmosphere, pressure is equal to
the weight per area of overlying fluid
900 millibars equals
0.9 bar
low atmospheric surface pressure usually corresponds to
cloudy and rainy weather
why is there abundant nitrogen in earth’s atmosphere?
all of the above
Which of the following is the ideal gas law?
p = NT
The Clausius-Clapeyron equation tells us
the pressure of water molecules leaving a liquid surface
Dalton’s law states that
partial pressures add
Which emits water molecules at a faster rate?
hot water
If a mixture of nitrogen and oxygen has a total pressure of 900 mbars, and if the partial pressure of nitrogen is 720 mbars, what is the partial pressure of oxygen?
180 mbars
If RH < 1, then
liquid water evaporates
Relative humidity is the vapor pressure in the air divided by the saturation vapor pressure.
true
If RH > 1, then
water vapor condenses
If RH = 1, then
nothing happens
If the number of air molecules in a sealed jar is doubled without changing the temperature, how does the pressure in the jar change?
it doubles
If the temperature of air in a sealed jar is doubled without changing the number of air molecules, how does the pressure in the jar change?
it doubles
According to the Clausius-Clapeyron equation, the saturation vapor pressure pv* is a function only of
temperature
According to the Clausius-Clapeyron equation, pv * increases with temperature exponentially at a rate of approximately
7%/K
If the number of water molecules in a fixed volume of air is doubled without changing the temperature, what happens to the water vapor pressure pv?
it doubles
If the partial pressures of nitrogen, oxygen, argon, and water vapor are 780 mbars, 200 mbars, 10 mbars, and 30 mbars, what is the total pressure?
1020 mbars
In an atmosphere with water, approximately what is the temperature at a height of 4 km if the temperature at a height of 2 km is 283 K?
270 K
in a house, hot air rises and cold air sinks
true
in the atmosphere, hot air rises and cold air sinks
true
what is a cloud base?
all of the above
In an atmosphere with water, what is the numerical value of the lapse rate?
6.5 K/km
When a gas is depressurized, its temperature
goes down
Which of the following is not an example of a gas being pressurized?
using a can of air duster to clean a comptuter
Condensation of water vapor does the following?
heats the air
what is the lapse rate?
the decrease in atmospheric temperature with height
what gas is pressurized, its temperature
goes up
in a pot of water heated from below, hot water rises and cold water sinks
true
in a dry atmosphere, what is the numerical value of the lapse rate?
10 K/km
what are a set of appropriate units for the lapse rate?
K/km