The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the sp

Question

The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of liquid water is 4.18 J/g°C.

What quantity of heat is required to warm 57.7 g of liquid water from 0°C to 100°C?

i dont get how to do this problem..please help

Answer 1

57.7gH2O x 100degC x 4.18J/g-deg = 241186 J = 241 kJ to two significant figures.

The heats of fusion and vaporization are what Alfred Hitchcock used to call a McGuffin. You're supposed to keep your eye on Janet Leigh while story is really going someplace else.