Energy from Sun has short wavelengths (s) and high energy. CO2 and methane (CH4) let this light in. Reflected light has longer and less energy. CO2 and CH4 (“greenhouse s gases”) prevent reflected light from escaping, thus warming the atmosphere. Why more CO2 in atmosphere now than 500 ago? ______________________ _______________________ -- -- -- -- -- -- -- * What can we do? 1. Reduce consumption of fossil fuels. At home: On the road: 2. Support environmental organizations. 3. Rely on alternate energy sources. solar, wind energy, hydroelectric power The Kinetic Molecular Theory (KMT) -- -- w/“ideal” gas particles… 1. so that they are assumed to have zero volume …are 2. in constant, straight-line motion …are 3. elastic collisions in which no energy is lost …experience 4. no attractive or repulsive forces toward each other …have 5. an average kinetic energy (KE) that is proportional to the …have absolute temp. of gas (i.e., Kelvin temp.)
Energy from Sun has short wavelengths (s) and high energy. CO2 and methane (CH4) let this light in. Reflected light has longer s and less energy. CO2 and CH4 (“greenhouse gases”) prevent reflected light from escaping, thus warming the atmosphere. Why more CO2 in atmosphere now than 500 ago? ______________________ _______________________ -- -- -- -- -- -- -- * What can we do? 1. Reduce consumption of fossil fuels. At home: On the road: 2. Support environmental organizations. 3. Rely on alternate energy sources. solar, wind energy, hydroelectric power The Kinetic Molecular Theory (KMT) -- -- w/“ideal” gas particles… 1. …are so that they are assumed to have zero volume 2. …are in constant, straight-line motion 3. …experience elastic collisions in which no energy is lost 4. …have no attractive or repulsive forces toward each other 5. …have an average kinetic energy (KE) that is proportional to the absolute temp. of gas (i.e., Kelvin temp.)
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