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Freon-11, CCl3F has been commonly used in air conditioners. It has a molar mass of 137.35 g/mol and its enthalpy of vaporization is 24.8 kJ/mol at its normal boiling point of 24C. Ideally how much energy in the form of heat is removed from a room by an air conditioner that evaporates 1.00 kg of freon-11?

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Answer:

180.56 Kilo joules of energy is removed in the form of heat when 1.00 kg of freon-11 is evaporated.

Step-by-step explanation:

Molar mass of freon-11 = 137.35 g/mol

Enthalpy of vaporization of freon-11=
\Delta H_(vap)=24.8 kJ/mol

Mass of freon-11 evaporated = 1.00 kg = 1000 g

Moles of freon-11 evaporated =
(1000 g)/(137.35 g/mol)=7.2807 mol

Energy in the form of heat removed when 1.00 kg of freon-11 gets evaporated:


7.28067 mol* \Delta H_(vap)=7.2807 mol* 24.8 kJ/mol


=180.56 kJ

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