Liquid water's specific heat capacity = 4.184 J/g°C
Molar ΔH of fusion for water = 6.02 kJ/mol
Molar ΔH of vaporization for water = 40.7 kJ/mol
c (speed of light) = 3.0E8 m/s        h (Planck's constant) = 6.63E-34 J·s
1 m = 1 billion nm
Energy, Wavelength, Frequency, and Light (Wave-behavior): E=hf and c=λf