82. Write a mathematical expression Kc (chemical equilibrium constants) for reversible reactions and indicate the direction of equilibrium shift when conditions change:
a) a decrease in the partial pressure of one of the initial gaseous substances; b) lowering the pressure; c) an increase in temperature.

Number
tasks Reaction equation ∆Н0, kJ/mol
82 4NH3(g) 5 O2 (g) ↔4NO (g) 6 H2O (g) 908

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