The equation that represents the water-gas shift reaction is :

The values of the crystal field stabilization energies for a high spin d⁶ metal ion in octahedral and tetrahedral fields, respectively, are :

Consider the following reaction:

N₂O₄(g) ⇌ 2NO₂(g); $$\Delta $$H^o = +58 kJ

For each of the following cases (a, b), the direction in which the equilibrium shifts is :
(a) Temperature is decreased.
(b) Pressure is increased by adding N₂ at constant T.

Which of the following is not an essential amino acid :