For the following system at equilibrium, predict whether the reaction will shift to the right, left, or not be affected by a decrease in temperature. Also, determine the value of the equilibrium constant increase or decreases.  PCl5(g) ⇌ PCl3(g) + Cl2(g)  endothermic       The reaction will shift to the left and the K value will increase.     The reaction will shift to the right and the K value will decrease.      The reaction will not be affected and the K value does not change.      The reaction will shift to the left and the K value will decrease.     The reaction will shift to the right and the K value will increase.

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