Question

The molar heat of vaporization of acetone, c3h6o, is 30. 3 kj/mol at its boiling point. How many kilojoules of heat would be liberated by the condensation of 5. 00 g of acetone?.

Answer 1

The kilojoules of heat that would be liberated by the condensation of 5. 00 g of acetone is 2.612 kJ.

What is the molar heat of vaporization?

The molar heat of vaporization is the amount of energy required to convert one mole of a chemical substance from the liquid to the gaseous phase provided that the temperature and pressure are constant.

From the given parameters:

• The molar heat of vaporization = 30.3 kJ/mol
• The mass of acetone liberated = 5.00 g
• The molar mass of acetone = 58 g/mol

Therefore, the amount of heat that would be liberated by the condensation of 5.00 g of acetone is:

$\mathbf{ =\dfrac{ 5.00 g}{58 \ g/mol } \times 30.3 \ kJ/mol }$

= 2.612 kJ

Learn more about molar heat of vaporization here:

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