Question

MULTIPLE CHOICE. Cether of the core circled, and one of which is correct half credit will be given 12 circled, and CHOICE. Circle the and 1. Which of the following statements concerning mis on A) A system that is disturbed from an gurumo responds in a to restore equilibrium B) Equilibrium in molecular systems is dynamic with two opposing process balancing one another ) The value of the equilibrium constant for a diven reaction mode is the same regardless of the direction from which equilibrium is attained D) A system moves spontaneously toward a state of equilibrium E) The equilibrium constant is independent of temperature. 2. At a certain temperature. K = 25 and a reaction vessel contains a miodure wie the following concentrations: Hal = 0.10 M. Bral = 0.10 M and HB = 0.50 ML Which of the following statements concerning the reaction quotient, Q. is true H2(g) + Bra(g) + 2HBr(g) A) Q = kc B) Q <ko more HBr will be produced C) Q <Kc, more Hz and Brz will be produced D) Q > Kc, more HBr will be produced E) Q > Ko more H2 and Bra will be produced 3. The equilibrium constant for the decomposition of COBr2 is: COBr2(g) = CO(g) + Bra(g) Ke= 0.190 What is the value of Kc for the following reaction? CO(g) + Br2(g) = COBra(g) A) 0.0361 B) 2.63 C) 5.26 D) 10.5 E) 27.7 4. If the value for Kp for the following reaction at 500 K is 1.5 x 10-, calculate thi value of the equilibrium constant, kc. N2(g) + 3H2(g) = 2NH3(g) C) 9.6 x 10-2 A) 7.5 x 10-2 D) 2.5 x 10-2 B) 1.3 x 10-2 E) 6.0 x 10-2

Answer 1

o not true depends upen because equilibrium constant Temperature @ O: CH2 (0-5)? [m3cm 06 (0.1) - 25 Cobra cs Z COCs) + B2 283), kc = -190 so kefer Cookie Cocg) + Br2(g) Z by KP = 1.5x10 D32(2-0) 1.5x105 = kc (10821x500) = -2 kp= kx CR ong o i ke Ciorgroot2 ke= 1.5x05 (0821x800)-2 Kee 2527.658103 K=2.5 x 108