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РСl 5 is endothermic (- 92 КJ), then to increase the equilibrium towards the direct

reaction (→) it is necessary to increase the temperature - T↑;

b) due to the fact that the direct reaction leads to an increase in the system

volume (two gaseous molecules are formed from one molecule of gas), the

pressure p ↓ must be reduced to shift the equilibrium to the right (→);

c) shifting the equilibrium to the right (→) can be either by an increasing the

concentration of PCl 5 ([РСl 5]↑), or by decreasing the concentration of РСl 3 (

[РСl 3]↓) або Сl 2 ([Сl 2 ]↓).

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