Question

Calculate the energy required to vaporize 50g of water initially at 80¡ãC. ( specific heat capacity of water- 12jgk, specific heat of vaporization- 220jk

Answer 1

q1 = heat needed to raise T from 80 C to 100 C.
q = mass H2O x specific heat H2O x (Tfinal-Tinitial)

q2 = heat needed to vaporize H2O at 100 to steam at 100.
q2 = mass H2O x heat vaporization.

Note: I don't agree with those numbers you have for specific heat H2O or heat vaporization for H2O.