T (K) 1/T P (bar) ln (P) ∆H ∆S
(K-1) (KJ/mol H2) (J/mol H2. K)
77 12.987 69 4.343805 0.62607
173 5.78 77 5.153292 3.35697
223 4.4843 80 5.407172
273 3.663 86.2 5.609472