Which step(s) of the greenhouse effect are being most affected by the increases in greenhouse gases, leading to an increase in heat?
1. Solar radiation enters the Earth system and is reflected and absorbed.
2. Absorbed energy is released into the atmosphere as heat.
3. Heat is absorbed by the atmosphere.
4. The atmosphere re-releases heat, warming Earth’s surface and lower atmosphere.
Answers: 3
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Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
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Which step(s) of the greenhouse effect are being most affected by the increases in greenhouse gases,...
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