Tuesday, April 3

Section 2: Complete the worksheet given out in class today. Also, if you want to do test corrections, here are the molar enthalpy questions:

1) How much energy is absorbed when 16.3 g of ice melts?
2) Calculate the quantity of energy released when 783 g of steam condenses.
3) A certain substance has a molar enthalpy of vaporization of 31.6 kJ/mol. How much of the substance is in a sample that requires 57.0 kJ to vaporize? (answer should be in moles)

∆Hv = 40.79 kJ/mol ∆Hf = 6.009 kJ/mol