The equilibrium constant for the reaction H,S(g) + I(g) 2 2 HI(g) + S(s) at 110°C is equal to 0.0023. Calculate the reaction quo- tient Q for each of the following conditions and determine whether solid sulfur is consumed or produced as the reac- tion comes to equilibrium. (a) P, = 0.461 atm; Pµ;s = 0.050 atm; PHI (b) P, = 0.0 atm 0.461 atm; R1,s = 0.050 atm; PHI = 9.0 atm

The initial concentrations or pressures of reactants and products are given for each of the following systems. Calculate the reaction quotient and determine the direction in which each system will proceed to reach equilibrium. (The system is considered in equilibrium if Kc and Qc are within 5% of each other.) (a) 2 NH3(g) equalibrium arrow N2(g) + 3 H2(g),   [NH3]i = 0.400 M, [N2]i = 0.155 M, [H2]i = 0.110 M, Kc = 16 What is the reaction quotient?   What direction will the reaction shift to?     (b) 2 NH3(g) equalibrium arrow N2(g) + 3 H2(g),  Pi(NH3) = 2.10 atm, Pi(N2) = 10.70 atm, Pi(H2) = 10.70 atm, Kp = 8.3 ✕ 104 What is the reaction quotient?   What direction will the reaction shift to?      (c) 2 SO3(g) equalibrium arrow 2 SO2(g) + O2(g),    [SO3]i = 1.90 M, [SO2]i = 1.90 M, [O2]i = 1.90 M, Kc = 0.23 What is the reaction quotient?   What direction will the reaction shift to?     (d) 2 SO3(g) equalibrium arrow 2 SO2(g) + O2(g),  Pi(SO3) = 0.100 atm, Pi(SO2) =…

Benzoic acid (C,H,COOH) dissolves in water to the extent of 2.00 g L¯1 at 15°C and in diethyl ether to the extent of 6.6 × 10² g L¯1 at the same temperature. (a) Calculate the equilibrium constants at 15°C for the two reactions C,H;COOH(s) 2 C,H;COOH(aq)

At 500oC, K for the formation of NH3 from N2 and H2 is 1.5 x 10-5. Calculate the equilibrium partial pressure of H2 when partial pressures of  NH3 and N2 are 0.015 and 1.2 atm.

Consider the reaction: CH3COOH (aq) + H₂O(1) K = 1.8 x 10-5 at 25 °C Part A If a solution initially contains 0.225 mol L-¹ CH3COOH, what is the equilibrium concentration of H3O+ at 25 °C? Express your answer in moles per litre to two significant figures. 15. ΑΣΦ [H3O+] = H3O+(aq) + CH3COO (aq) Submit Request Answer ? mol L-1

Use the data in the supporting materials to calculate the equilibrium constant (Kp) for the following reaction at 25°C. 2 SO2(g) + O2(g) =2 S03(g) Кра 4.24e24 Calculate Kp for the reaction at 49°C using the following equations. (a) the van't Hoff equation below. (P), A,H° RT? a In K Кр = 1.138e22 (b) the Gibbs-Helmholtz equations below to find A-G° at 49°C and hence, Kp at the same temperature. AG ΔΗ (i) = - T2 A-G2 A;G1 1 (ii) T2 T1 T1 Kp = 1.138e22 (c) A-G° = ArH° – TA¡S° to find A-G° at 49°C and hence, Kp at the same temperature. Кр 3D 1.7742е22 State the approximations employed in each case. The assumption that A,H° is temperature independent and equal to the value calculated at 298.15 K is required by all three parts A second assumption that AS° is temperature independent and equal to the value calculated at 298.15 K is required by part (c) Compare your results. The answers calculated in parts (a) and (b) ▼ in part (c) are very close as expected because the formulas used to…

(b) At 100° C, the Keq for the Haber process is 4,51 X 10-5: N₂ + 3 H₂ 2 NH3 Consider the following reaction conditions and determine if the system is at equilibrium. If not, indicate the direction in which the reaction must proceed to establish equilibrium (i) PNH3 105 atm, PN2 = 35 atm and PH2 = 495 atm (ii) PNH3 35 atm, PN2 = 0 atm and PH2 = 595 atm (iii) PNH3 = 26 atm, PN2 = 202 atm and PH2 = 42 atm (iv) PNH3 105 atm, PN2 = 5 atm and PH2 = 55 atm