For the reaction PCl5(g) <--> PCl3(g) + Cl2(g) at equilibrium, which statement correctly describes the effects of increa

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For the reaction PCl5(g) <-->PCl3(g) + Cl2(g) at equilibrium,which statement correctly describes the effects of increasingpressure and adding PCl5, respectively?
increasing pressure causes shift toward products, addingPCl5 causes shift toward products
increasing pressure causes shift toward reactants, addingPCl5 causes shift toward products
increasing pressure does not affect reaction, addingPCl5 causes shift toward products
increasing pressure does not affect reaction, addingPCl5 causes shift toward reactants