Suppose the following reaction system has already reached equilibrium: P4 (s) + 6 Cl2 (g)  4 PCl3 (l), - H. Predict the effect that each of the following changes will have on the equilibrium positions (shift to the right, shift to the left or no effect). Explain your reasoning. a/ Placing the reaction vessel in an ice bath. b/ Decreasing the volume of the container.

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