1)
Since temperature is not changing, Kc would be constant
Answer: will not change
2)
Qc = [PCl5]/[PCl3][Cl2]
since we removed PCl5, Qc would decrease and it becomes less than Kc
Answer: less
3)
Since Qc < Kc, the reaction moves in forward direction to re establish equilibrium
Answer: option 1
4)
Since Cl2 is reactant which is getting used up as reaction moves in forward direction, its concentration would decrease
Answer: decreases
Consider the following system at equilibrium where AH° -87.9 kJ/mol, and K 83.3 , at 500...
Consider the following system at equilibrium where H° = -87.9 kJ, and Kc = 83.3 , at 500 K: PCl3(g) + Cl2(g) PCl5(g) If the TEMPERATURE on the equilibrium system is suddenly decreased : The value of Kc A. Increases B. Decreases C. Remains the same The value of Qc A. Is greater than Kc B. Is equal to Kc C. Is less than Kc The reaction must: A. Run in the forward direction to restablish equilibrium. B. Run in...
Consider the following system at equilibrium where AHo--87.9 kJ, and Kc-83.3, at 500 K. PCl3(g) C2(gPCI5(g) If the VOLUME of the equilibrium system is suddenly decreased at constant temperature: The value of KcA. increases B. decreases C. remains the same The value of Qc A. is greater than Kc B. is equal to Kc C. is less than K The reaction must:A. run in the forward direction to reestablish equilibrium B. run in the reverse direction to reestablish equilibrium C....
Consider the following system at equilibrium where AH° = 198 kJ, and Kc - 2.9010-2 at 1150 K. 2SO3(g) 2502(g) + O2(g) When 0.33 moles of SO2(g) are added to the equilibrium system at constant temperature: The value of Kc The value of Qc Kc The reaction must Orun in the forward direction to restablish equilibrium. Orun in the reverse direction to restablish equilibrium. remain the same. It is already at equilibrium. The concentration of O2 will Submit Answer Retry...
Consider the following system at equilibrium where delta H° = 87.9 kJ/mol, and Kc = 1.20×10-2, at 500 K. PCl5(g) ⇌ PCl3(g) + Cl2(g) When 0.15 moles of PCl5(g) are removed from the equilibrium system at constant temperature: Answer the following: The value of Kc _________ (possible answers: increases, decreases, or remains the same) The value of Qc _________(possible answers: is greater than, is equal to, or is less than) Kc. The reaction must (choose a, b, or c from...
Consider the following system at equilibrium where AH° = -198 kJ, and K. = 34.5, at 1.15*10' K. 2802(g) + O2(g) 2803(g) If the VOLUME of the equilibrium system is suddenly decreased at constant temperature: The value of K A. increases. B. decreases. C. remains the same. The value of Qc A. is greater than K. B. is equal to K C. is less than K The reaction must: A. run in the forward direction to reestablish equilibrium. B. run...
dal values if needed for this question Consider the following system at equilibrium where AH* = 92.7 kJ, and K = 1.80*10*, at 298 K, NH,HS() NH3(e) + H2S(g) When some moles of NH HS(s) are added to the equilibrium system at constant temperature: The value of Kc The value of QC The reaction must run in the forward direction to restablish equilitlum. run in the reverse direction to restablish equilibrium. remain the same. It is already at equilibrium. The...
Consider the following system at equilibrium where AH° = 16.1 kJ, and K. -6.50x10. at 298 K. 2NOBr(g) = 2NO(g) + Brz(9) If the VOLUME of the equilibrium system is suddenly decreased at constant temperature: The value of K. A. increases. B. decreases. C. remains the same. The value of QcL A . is greater than Kc. B. is equal to Ke C. is less than Ka The reaction must: A. run in the forward direction to reestablish equilibrium. B....
Consider the following system at equilibrium where AH--198 kJ and Ke - 34.5, at 1.15X10 K. 2802(g) + O2(g) 2503(g) If the VOLUME of the equilibrium system is suddenly increased at constant temperature: The value of K. A increases B. decreases. C. remains the same The value of Qc A is greater than KC B. is equal to Kc C. is less than K The reaction must: A. run in the forward direction to reestablish equilibrium B. run in the...
Consider the following system at equilibrium where AH° ° = 10.4 kJ, and Kc = 1.80x10-2, at 698 K. 2HI(g) H2(g) + 12(g) When 0.25 moles of H2(g) are removed from the equilibrium system at constant temperature: The value of Kc The value of Qc AK The reaction must Crun in the forward direction to restablish equilibrium. run in the reverse direction to restablish equilibrium. remain the same. It is already at equilibrium. The concentration of 12 will
Consider the following system at equilibrium where AH° = 10.4 kJ, and K. -1.80x10-2, at 698 K. 2HI(g) 2 H2(g) + 12() When 0.24 moles of H2(g) are added to the equilibrium system at constant temperature: The value of K. The value of Qc В к The reaction must run in the forward direction to restablish equilibrium run in the reverse direction to restablish equilibrium. remain the same. It is already at equilibrium. The concentration of I, will