Equilibrium constants



Does anyone know where I can find good data for the equilibrium constants,
 (as a
 function of temperature), for the reactions:
 H2 + Cl2 = 2HCL
 and
 H2 + Br2 = 2HBr
 Thank you.
 Connie Knauer
 Georgetown University
 knauerc;at;georgetown.edu