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To calculate the heat necessary to vaporize a substance, the heat of vaporization is used along with the mass of the liquid to be vaporized. Here is the heat of vaporization equation: Q = m * Hv
The latent heat of vaporization for water is 22.6 x 10^5 J/kg. This means that 22.6 x 10^5 J of heat energy must be added to turn one kilogram of water from liquid to gas at 100 degrees Celsius.
The heat of vaporization is the amount of energy required to turn a liquid into a gas at its boiling point. Just like with melting, it takes energy to change a liquid into a gas, but energy is ...
How much heat would it take to completely boil .0125 mol of mercury at its boiling point if its heat of vaporization is 59.2 kJ/mol? Step 1: Identify or calculate the number of moles of substance.
The latent heat of vaporization for water is 225 kJ/kg. Step 1: After reading the problem, identify the values for the latent heat of vaporization {eq}\rm{L_V} {/eq} and the mass of the object m ...
The latent heat of vaporization of H2O at body temperature (37.0° C) is 2.42 106 J/kg. To cool the body of a 84 kg jogger (average specific heat capacity = 3500 J/(kg · C°)) by 1.2° C, how many kilograms of water in the form of sweat have to be evaporated?
To learn more about this topic, review the lesson related to it called Heat of Vaporization: Definition & Equation. This lesson covers the following objectives: Define the heat of vaporization
The heat of vaporization for iron is 69.1 cal/g. 6,910 calories. 6.91 calories. 691 calories. 0.691 calories. 2. What takes more energy: changing a liquid to a gas or changing a solid to a liquid?
Science; Chemistry; Chemistry questions and answers; Heat of vaporization for ethanol is +40.7 kJ/mol, its heat of fusion is +5.0kJ/mol. C_2H_5OH (I) rightarrow C_2H_5OH (g) C_2H_5OH (s) rightarrow C_2H_5OH (I) What is the heat of sublimation for ethanol in the following reaction?
The heat of vaporization ΔHv of ethanol C2H6O is 38.6 kJ/mol. Calculate the change in entropy ΔS when 692.g of ethanol condenses at 78.4°C. The molar mass of ethanol is 46.07 g/mol. Group of answer choices -1649 J/K 1649 J/K -340 J/K 340 J/K Question 2. down