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At 525 K, the equilibrium constant of th...

At 525 K, the equilibrium constant of the reaction `PCl_5 iff PCl_3 + Cl_2 ` is 1.78 atm `(K_p)` . At what pressure should an equimolar mixture of `Cl_2` and `PCl_3` , be taken for the pressure of `PCl_5` to be `5 xx10^4` Pa at equilibrium, volume remaining constant?

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`28.99 xx 10^4 Pa `
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