Earth Systems Exam #2 Questions with Correct Answers
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Course
Earth\\\'s Systems
Institution
Earth\\\'s Systems
Changes of State of Water - Answer-3 states of matter
change states, heat must be released or absorbed
Evaporation - Answer-change to gas: heat is absorbed
600 calories/ gram of H2O added- latent heat of vaporization
in order to raise temp. 1 C we need energy of 1 Calorie in water
Condensa...
Earth Systems Exam #2 Questions with
Correct Answers
Changes of State of Water - Answer-3 states of matter
change states, heat must be released or absorbed
Evaporation - Answer-change to gas: heat is absorbed
600 calories/ gram of H2O added- latent heat of vaporization
in order to raise temp. 1 C we need energy of 1 Calorie in water
Condensation - Answer-gas to liquid
heat energy released as latent heat of condensation
Melting - Answer-solid to liquid: heat is absorbed
80 calories/ gram of H2O added: latent heat of melting
Freezing - Answer-Liquid to solid
Heat released as latent heat of fusion
Sublimation - Answer-solid to gas like ice in freezer
680 calories/ gram water added
heat is absorbed
Deposition - Answer-water vapor to solid like frost in freezer- crystalization
heat is released
Humidity - Answer-amount of water vapor in air
water vapor adds pressure to the air
saturated air - Answer-filled with water vapor at 100%
capacity is temp. dependent- warmer the air, the greater the capacity
equals the capacity
Relative Humidity - Answer-ratio of air's water vapor vs. the amount of vapor required
for saturation at that air temp. and pressure
How is relative Humidity changed? - Answer-adding or subtracting moisture in air
raising or lowering the temperature- the lowering temperature raises the R.H.
Dew point Temp. - Answer-temp. at which air needs cooling to reach saturation
cool air below dew point causes condensation to form dew, fog, or cloud condensation
requires a surface to condense on
, Condensation Revised - Answer-water vapor changes to liquid to form dew, fog, or
clouds
requires a surface: like grass or car window
surface atmosphere involved
surface atmosphere - Answer-tiny particles like dust or smoke allow condensation nuclei
to condense
cloud formation - Answer-millions of minute water droplets or tiny crystals of ice in three
basic forms
cirrus - Answer-high, white, thin clouds in decent weather
over 6,000 meters are the cirrus, cirrostratus, and cirrocumulus
cumulus - Answer-globular masses also with fair weather
2,000-6,000 meters are altostratus and altocumulus clouds
stratus - Answer-sheets or layers, cover the sky in bad weather
below 2,000 meter high clouds are stratus, stratocumulus, and mimbostratus
fog - Answer-cloud with base at or near the ground and forms due to radiation cooling or
cold air moving over the surface
it is an atmospheric hazard
clouds of vertical development - Answer-from low to high altitudes with tropopause
being where an anvil head of cumulonimbus storm clouds hangs from usually
precipitation - Answer-cloud droplets of less than 20 micrometers in diameter
fall incredibly slow through atmosphere
Bergeron Precipitation Process - Answer-Temp. in cloud below freezing so ice crystals
collect
snowflakes form then fall as droplets
Collision -Coalescence Process - Answer-warm clouds and condensation nuclei
large droplets form and droplets collide with others during fall
common in tropics
rain - Answer-droplets of .5 mm in diameter
snow - Answer-aggregates of ice crystals of 6 sides and all unique
drizzle - Answer-droplets of less than .5 mm
hail - Answer-hard pellets of ice from cumulonimbus clouds
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