Air

Question 1

Atmosphere is greek for what words?

Answer 1

atmos - vapor
spherios - sphere

Question 2

How does the air protect us?

Answer 2

-Atmospheric gasses provide elements essential to LIFE (O2, CO2)
-air molecules FILTER out deadly ultraviolet radiant from sun
-Repository for pollutants that allows for reaction dispersion and dilution (GLOBAL DISTRIBUTION)
-Cleans itself by washing out (acid rain)

Question 3

what is the mass of the atmosphere?

Answer 3

~60 miles thick
~24,000 miles circumference
ratio of vert to horiz 1:400
apple skin

Question 4

in sensible atmosphere, a relatively homogenous mixture of gasses exist called the

Answer 4

Homosphere

Question 5

always have the same mixing ratio in the homosphere

Answer 5

constant gasses

Question 6

have different relative concentrations in different parts of homosphere

Answer 6

variable gasses

Question 7

list variable gas
varitaion due to weather conditions
seasonal variations
influenced by humans
many more than are listed

Answer 7

water vapor

CO2
CO2

trace gases

Question 7

measures the amount of heat energy assiciated with a substance

Answer 7

temperature

Question 8

Kelvin formula

Answer 8

K= C +273.15

Question 9

a force per unit area
a collision of gad molecules on surface of container

Answer 9

pressure

Question 10

atm pressure at sea lvl

Answer 10

14.7 lbs per square inch

Question 11

volume of sensible atmosphere is

Answer 11

~10 million trillion cubic meters

Question 12

density of air

Answer 12

1.3kg/m^3

Question 13

concentration

Answer 13

of molecules/total volume of sample

relates concentration to density by multiplying the mass of the molecules

Question 14

mixing ratio

Answer 14

closely related to concentration
defines the relative amnt of specific gas in a bulk sample of air
mass or volume
ppmm or ppmv