The following r G values are given for 25 C. Combine the preceding equations, as necessary,

The following Δ_rG° values are given for 25 °C.

Combine the preceding equations, as necessary, to obtain Δ_rG° values for the following reactions.

Of reactions (a), (b), and (c), which is spontaneous in the forward direction when reactants and products are present in their standard states?

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(1) SO₂(g) + 3 CO(g) (2) CS₂(g) +H₂O(g) (3) CO(g) + H₂S(g) (4) CO(g) + H₂O(g) COS(g) + 2 CO2(g) AG° = -246.4 kJ mol-1 COS(g) + H₂S(g) A,G° -41.5 kJ mol COS(g) + H₂(g) AG° +1.4 kJ mol-1 CO₂(g) + H₂(g) A.Gº = -28.6 kJ mol-¹ = =