New_Ch02_Energy_107 - Ch. 2 Energy: Warming the Ch. 2...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Ch. 2 Energy: Warming the Ch. 2 Energy: Warming the Earth and Atmosphere Earth and Atmosphere 2.1 Energy, Temperature, Heat 2.2 Heat Transfer in the Atmosphere 2.3 Radiation Absorption, Emission, Equilibrium Solar Energy Energy What is it? Energy What is it? Energy from the sun drives weather. Energy is the ability or capacity to do work on some form of matter. Matter has mass and takes up space. Work done on matter when a force causes the matter to move. The force does work on the matter and thus imparts energy upon it. Temperature What Is It? Temperature What Is It? http://www.atmos.uiuc.edu/courses/atmos100/all_programs.html Click here to activate this figure Temp. is a measure of the average speed of the molecules . The faster speed, the higher temp. Three Phases of Water Water substance on earth can exist in-Vapor (gas phase)-Water (liquid phase)-Ice (solid phase) Each phase has an energy level. Vapor has highest energy since molecules move fastest, and ice has the lowest energy. Latent Heat Hidden Warmth Phase change requires or gives off heat. Sensible heat absorbed in evaporation is stored in vapor as latent heat. This latent heat is released back as sensible during condensation. Evaporative Cooling/Condensational heating Evaporative Cooling Those escaping molecules (from water) are faster moving ones; those that stay in water are slower ones. The average molecular speed, i.e., temp., of water will be lower evaporative cooling....
View Full Document

This note was uploaded on 03/18/2012 for the course UNDERSTAND 212 taught by Professor Qi during the Spring '12 term at Saint Louis.

Page1 / 30

New_Ch02_Energy_107 - Ch. 2 Energy: Warming the Ch. 2...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online