People living in cold-climate countries where there is plenty of snow are advised not to heat their garages in the winter. What is the electrochemical basis for this recommendation?
Tuesday, March 7, 2017 Mountain Climate (Part 4) • Distribution of water on Earth Unique properties of water • • Adiabatic process • Water-related weather processes Distribution of Earth’s Water • 97.2% of water on Earth is saline • Of that 2.8%, most (87%) locked up in glaciers/icecaps or deep underground • Only 0.01% makes up all surface water resources! • Water moves through the Earth system via the hydrological cycle • Antarctica contains 70% of the Earth’s freshwater, 90% of the Earth’s ice Unique Properties of Water • Exists in all three states in moderate temperatures • Readily bonds, but is extremely stable • Dissolves many chemicals • Has extraordinary heat characteristics • Hydrogen bonding locks water molecules together, creating powerful tension. • Water has a high heat capacity Amount of heat it takes to change 1 gm of material by 1° C Ice is less dense than water, and expands in volume when freezing. • Water store stores and releases heat during phase changes 1 Tuesday, March 7, 2017 3 States of Water: Heat is stored when water changes state from solid to liquid to vapor Heat is released when water changes state from vapor to liquid to solid Water’s Heat-Energy Characteristics Vertical Motion in the Atmosphere Air parcel: “An imaginary small body of air that is used to explain the behavior of air.Aparcel is large enough to contain a very great number of molecules, but small enough so that the properties assigned
