Question

CHEM 106 Chemical Equilibrium, Acids and Bases 1. Which expression correctly describes the equilibrium constant for the following reaction? 4NH,(g)+ SO,(g) 4NO(g)+ 6H2O) K. LNO"CHO B) K-(4INOj+ 6HO1) (4NH,]+ S10))CAT6 ) K-(INOl,0])INH,O,l) D K-(INOjHO)/(IINH iol) E) K-(NHJTO) /INO)THO ANS: D 2. Determine the equilibrium constant for the system N;Oa 2NO; at 25 C. The concentrations are shown here: [N;O ]-2.32 x 10 A) 0.608 B) 1.65 C) 1.17 x 10 D) 0.369 E) 8.57 x 10 M, [NO 2]-1.41 x 10 M 0.0oxsu .o 10 32x 10 ANS: E 2A2 +4B, K would equal: 3.K 0.144 for A, + 2B 2AR then for 4AB A) 0.288 Ag 262A6 B) 0.144 x(-2) K, 0 1W C) -0.144 D) 3.47 E)) 48.2 CAT LA6) TAGJ' ANS: E COCI (g). What is the expression for K, in 4. Consider the gaseous reaction CO(g) + Cl:(g) Ko = K(ery' Kp: KJRT terms of K? A) K(RT) B) K(RT) C) K(RT) D) K(RT E) 1/K(RT) ANS: B 0.148 at a temperature of 298 K. What is K, fr =2NO:(g), K, 5. For the reaction N2O4(g) following reaction?

Answer 1

Question 1- correct option is D.

81. équilibrium constant is defined as the pooctuct of concentration of the 'pouduets raiseer to the power their coefficient upon the pooelust of concentration of reactants reuseal to the power their Coefficients. eg for a AtbB = cc + dD K = [[ ] []d . [Aja [B]" Hence for reaction 4 NH3 (4) + 50249) = 4NOCG) +6 H20lg) Hence K= (N074 [H20] 6 - [NH374 [2]5 Correct option