E200 1/23

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Fichas sobre E200 1/23, creado por Jacob Sipple el 21/01/2020.
Jacob Sipple
Fichas por Jacob Sipple, actualizado hace más de 1 año
Jacob Sipple
Creado por Jacob Sipple hace casi 5 años
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Pregunta Respuesta
What is Heat energy transferred spontaneously from a hotter body to a colder body
How is heat transferred conduction(solids) convection(liquids and gases) and by radiation
Watt 1J/sec 60watts emits 60 joules of energy / second
Joule heat required to raise temp of 1g of water by .24C
How much energy/m^2 does sun emit 340W/m^2 takes 20min to boil 1L from ice
How does earth lose energy emits infrared radiation
What wavelengths are emitted by sun UV and some other ones look on slides
K C + 273.15
Wein's law warmer bodies give of radiation at shorter wavelengths than cooler peak wavelength = 2900/T T= temp in K
temp of sun 5800K
Stephen-Boltzmann Law Warmer bodies give off more energy than cooler bodies W/m^-2 = gamma x T^4
Avg temp of earth 15C
electromagnetic radiation travels through vacuum of space everything gives off electromagnetic radiation if above 0K warmer bodies give off radiation at shorter than cooler warmer bodies emit more energy than cooler bodies
greenhouse effects infrared radiation absorbed by greenhouse gas, they re radiate in all directions
greenhouse gases Water vapor, CO2, CH4, N2O, O3
Which greenhouse gas absorbs most H2O
What % of emitted IR from earth absorbed by greenhouse gases 70-85%
% emitted from the sun absorbed 20-25%
What temp with no greenhouse gases ~0F
How much IR emitted from atmosphere to earth 398W/m^2
imbalance 1W/M^-2 temps rise until 0
Where is excess heat going Ocean(upper and deep), Ice, Land, Atmosphere
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