Topic: Enthalpy of Vaporization
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What is the enthalpy of vaporization for water?
Since it depends on vapor pressure, it varies depending on the temperature at which it's measured. At its boiling point at 1 atm, Water requires 539.43 calories per gram, 40.65 kj/mol, or 2257 kj/kg. Read More »
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What is enthalpy of vaporization?
The amount of energy to change 1 g of liquid to gas at its boiling point. Read More »
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What is enthalpy and entropy of vaporization?
Entropy of vaporization reflects the similar change in disorder that occurs when a liquid is converted into a gas. Molar enthalpy of vaporization is the..more? Read More »
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Enthalpy of Vaporization
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the standard enthalpy change of vaporization DHov is the enthalpy change when one mole of a substance is transformed into a gas enthalpy change is the term we use to describe the energy exchange that occurs with the surroundings at a consta...
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The Clausius-Clapeyron equation can be rewritten as . ln P = (-delta Hvap / R)(1/T) + C . . .this can be related to a straight line equation, y = mx + b. .y . .= . . . . . . m . . . . . . .x . . .+ b . . .where m is the slope of the graph o...
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Convert 1.50 g into moles MW of C6H6 = 78.11 (1.50 g)/(78.11 g/mole) = 0.01920 moles C6H6 Heat of vaporization = (0.652 kJ/0.01920 moles) Heat of vaporization = 33.95 kJ/mole
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It is termed as delta (∆) H with unit kJ/mol or kJ/kg of substance and associated with vaporization process (kJ of energy to vaporize 1kg or 1 mole of substance). There are two types of vaporization - evaporation and boiling. Evaporation oc...
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the amount of heat needed to change 1 mole of a subtance from liquid to vapour without a change in temperature...
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The change in enthalpy is dH = TdS + VdP. Since the pressure P is the same for the the vapor and the liquid, the change in enthalpy is just TdS, which is just the latent heat.
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