Question

4.

a) If the initial partial pressures are PNO = 126, PNOBr = 275 torr, find Qp and determine which direction the reaction proceeds.

b) When a mixture of NO, Br2, and H2 reaches equilibrium at 302 K, PNO = 133 torr and PBr = 151 torr. Find PNOBr (in Torr)

5. Iodine gas and hydrogen gas are sealed in a flask and heated ti 575 K. Before they react, the inital partial pressures if I2 and H2 at 575 K are: PI2 = 3.00 atm and PH2 = 2.00 atm. No other reactions take place. Find the equilibrium partial pressures of I2, H2, and HI at 575 K

K = 6 x 10-22 kg Na202[) = 2 Na(1) + O2(E) kg Na, o + 2 O Na₂O₂. 6x 10-22 = (3x105 4. Consider the reaction: 2 NO(g) + Br2 (8) 2 NOBr () Kp = 31.8 at 302 K a) If the initial partial pressures are Pro = 108 torr, Par, = 126 torr, Porr = 275 torr, find Q and determine which direction the reaction proceeds in to reach equilibrium (39.1) b) When a mixture of NO, Bry, and H, reaches equilibrium at 302 K, Pno 133 torr and Pr. 151 torr. Find ProBr (in torr). [335 torr] 5. Iodine gas and hydrogen gas are sealed in a flask and heated to 575 K. Before they react, the initial partial pressures of land H, at 575 K are: P. =3.00 atm and Pw=2.00 atm. No other reactions take place. Find the equilibrium partial pressures of I2, H2, and HI at 575 K. 12(g) + H2(g) 2 HI(9) Ky - 92 at 575 K IP = 1.14 atm: P = 0.14 atm; P = 3.72 atm] I2 + H₂ 241 3 2 O ko Co (Pro) (0) + (Pug) (2x)² (3x) (2-x) 6-3x - 2x + x²

Answer 1

4) 2 Nocq) + Br, (g) = 2 NoBreg) a Kp = 31.8 Qp = ProBr / p mox Porz (217/460)/100 760 Qp = 9.1 Qp > Kp. So C reaction b) proceeds to c left kp = PP NoBr / pl Nox Porta 31.83 PRT/ C) NO BY = 335 torr