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Chemistry
Vaporization Heat and the Heat Capacity of H20 comparison
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[QUOTE="StarChem, post: 6525731, member: 693149"] According to the Vaporization Heat table, the heat needed for 1 mol of H2O to evaporate at 100°C is 40.7KJ and 44.0KJ/mol is needed to evaporate H2O at 25°C. Thus 44.0-40.7=3.7KJ is the energy needed to heat H2O to 100°C from 25°C. However, according to the heat capacity of H2O, 3.7KJ will only warm the water by ~+48.6°C, which is not enough to reach 100°C starting from 25°C! [ATTACH type="full" alt="HEAT CAPACITY TABLE.jpg"]287301[/ATTACH][ATTACH type="full" alt="HEAT OF VAPORIZATION.jpg"]287302[/ATTACH] [/QUOTE]
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Vaporization Heat and the Heat Capacity of H20 comparison
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