1. Indicate and explain in which direction the equilibrium in the systems will shift:
2СО (g) ⇄ СО2 (g) С (t), ∆H0298= -173.0 kJ
MgCO3(t) ⇄ MgO(t) CO2(g) ∆H0298 = 385.0 kJ
a) when the temperature rises;
b) when the total pressure decreases. Write expressions for the equilibrium constant of these reactions.

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