Water (2710 g ) is heated until it just begins to boil. If the water absorbs 5.43×105 J of heat in the process, what was the initial temperature of the water?
q = mass H2O x specific heat x delta T
q = mass H2O x specific heat x (Tfinal-Tinitial)
5.43E5 J = 2710 g x 4.184 J/g*C x (100 - Tinitial)
Solve for Tinitial.