Question

1. The initial concentrations of reactants and products for this reaction are given below.

N_2(g)   +   O_2(g)  ⇄ 2NO_(g)

Calculate Q for this reaction. Answer this to one decimal place (e.g. 10.2)

The initial concentration of N₂ is 1.0 M

The initial concentration of O₂ is 1.0 M

The initial concentration of NO is 2.5 M

2.

Calculate the equilibrium concentration of Cl₂ in that results from the

decomposition of COCl₂ with an initial concentration of 0.3166 M.

COCl₂(g) ⇌ CO(g) + Cl₂(g) K= 2.2 × 10^-10

Enter your answer using decimal notation (e.g. 0.002). Do not enter the units.

3.

Calculate the equilbrium concentration (molarity) of PCl₃ given the equilibrium concentration of PCl₅ is equal to 2.00 M.

PCl_5(g)  ⇌ PCl_3(g) + Cl_2(g) K = 0.0211

Use decimal notation (e.g. 1.001). Do not enter the units.

Answer 1

N2Cg) + O2(g) + 2NO(g) ang Activity quiotient a= . [Note [N] [2] (Where concentration of the species at any time of the react 9 (2.5)2 (110), (1.0) = 6.25 ~ 6.2k rounding off to the one decimal couco 0.3166 initial 0 cocg) & clcg). r o o x x . At equilibrium (0.3166-x) x= equilibrium concentration of ch Equilibrium constant ka Icon [ [coch ] ] =) 2.2 xTolo - x x (0.3166-x) As of the k = 2. 2x1010, is very less therefore the extent the reaction (n) will also be very very small .: . 3166 >> x 0.3166- X 0.3166 2 2.2 3.2 x 100 = X 1o 0.3166 2) x 3.2% 101° 0.3166 x = 8.315 x16 x = 0.000008315 equilibrium concentration of cla is 0.000008315 m. Pets &

pas(g) pel ₂ (g) + aco) Let the equilibrium concentration of pan is om Therefore equilibrium concentration of cle will also be equal to xm. .. [ Jeg = [ pas Jeq = x m - L Pan Jeg = 2,00 M i equilibrium constant kar [pag] [cz] EP05 2.X >) 0.0211 - 2.00 2) a= 0.0211 x 2100 = x= Joro2 11 x 2.00 noitects x = 0.2054 M) o equilibrium concentration of paz is 0.2054 M. VOUS ANEXOS 21