How many joules to vaporize 1.5 L of H2O at 19 degrees Celsius?
q1 = heat to raise T from 10 too 100 C.
q1 = mass H2O x specific heat H2O x (Tfinal-Tinitial)
q2 = heat to vaporize H2O
q2 = mass H2O x heat vaporization.
Total is q1 + q2.
q1 = mass H2O x specific heat H2O x (Tfinal-Tinitial)
q2 = heat to vaporize H2O
q2 = mass H2O x heat vaporization.
Total is q1 + q2.