ch Textbook Solu Lv2 I Online teaching and i x signment/takeCovalentActivity.do?

Question

ch Textbook Solu Lv2 I Online teaching and i x signment/takeCovalentActivity.do?locator-assignment-take Use the References to access important valaes If acecded for thls quest Consider the following system at equilibrium where H-879 ki, and Ke-1.20×102, at 500 K. When 0.21 moles of PCIy(g) are removed from the equilibrium system at constant temperature: the value of KeA. increases. B. decreases. C. remains the same. the value of Qe A is greater than Ke .. is equal to Kc. C. is less than Ke the reaction must:A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium. the concentration of Cl2 will:A. increase. B. decrease. C. remain the same. Submit Answer Retry Entiro Group 9 more group attempts remalning

Explanation / Answer

1) Equilibrium constant Kc is dependent only on temperature. It will remain the same. Option C is correct.

2) Qc = [PCl3] [Cl2]/ [PCl5] Therefore when moles of PCl3 will decrease and become less than the equilibrium constant Kc.

3) Since Qc < Kc the reaction will run in the forward direction to reestablish the equilibrium.

4) As the reaction will move in the forward direction to reestablish the equilibrium the concentration of Cl2 will increase.

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