PQ-23. At 298 K, the equilibrium constant for this reactionH2(g) + O2(g)= H₂O(l)AG° (kJ mol¹)-237-229H₂O(1)H₂O(g)(A) has a value of 1.0 at equilibrium.(B) is larger than the Keq for H2(g) + O2(g)=H₂O(g).(C) cannot be computed since data on O2 and H2 are not provided.(D) will have the same value as the Keq for H2(g) + O2(g)= H₂O(g)

The equilibrium constant (K) of the reaction at 25oC can directly be obtained from the relationship…

Answered: PQ-23. At 298 K, the equilibrium…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter12: Gaseous Chemical Equilibrium

Section: Chapter Questions

Problem 60QAP

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6-78 (Chemical Connections 6A) Oxides of nitrogen (NO, NO2,N2O3) are also responsible for acid rain. Which acids can be formed from these nitrogen oxides?
At -119 °C, Keq = 0.472 for the reaction: (a) What is the value of Keq for the reaction NOBr(g) NO(g) + 1/2 Br₂(g)? = 2.12 (b) What is the value of Keq for the reaction 2 NO(g) + Br₂(g) = 2 NOBr(g)? Keq=0.944 NO(g) + 1/2 Br₂(g) = NOBr(g) |x Keq=1.06 (c) What is the value of Keq for the reaction 2 NOBr(g) = 2 NO(g) + Br₂(g)? X
3. In the following reaction, acetic acid and ethanol react together to form ethyl ethanoate and water. Use the following concentrations under equilibrium to calculate the equilibrium constant, K. CH,COOH (I) + CH,CH,OH (1) = CH,COOC,H¿(1) + H,O (1) Species Concentration (mol dm) CH;CH,OH 0.30 CH;COOH 0.13 H,0 0.39 CH,COOC,H; 0.39
Write the equilibrium constant expression, K, for the following reaction taking place in dilute aqueous solution. (CH3)2NH (aq) + H2O(1) |(CH3),NH,* (aq) + OH'(aq) K =
Arrange the following bases in increasing base strength. There Strongest base Methylamine (CH3NH2), K, = 4.4 x 104 I Pyridine (C5H5N), K 1.7x 109 Aniline (C,H5NH2), K = 3.9 x 10 10 Dimethylamine (CH3)2NH), Kp = 5.1x 104 | Hydrazine (N2H4), Kg = 1.3 x 106 Weakest base 1. 2) 3. 4) 5.
The following reactions all have K > 1. 1) CH3COO (aq) + C,H;COOH (aq) =CH;C0OH (aq) + CgH;C00 (aq) 2) CN (aq) + CgH;COOH (aq)= C,H3C00 (aq) + HCN (aq) 3) CH;COОH (аq) + CN (aq) — НCN (aq) + CH;COО (аq) Arrange the substances based on their relative base strength. Clear All C,H;COOH C,H;C00- strongest base CN- intermediate base CH3CO0 weakest base HCN not a Bronsted-Lowry base CH;COOH
Write equilibrium constant expressions for the following reactions in terms of concentration: (a) 2 CH₂Cl₂(g)CH₂(g) + CCl4(g) K = (b) Co(s) + H₂O(g) Co0(s) + H₂(g) K= (c) HCIO(aq) + H₂O(2) H30*(aq) + CIO (aq) K =
6B.4(b) The equilibrium constant for the reaction N2(g) + O2(g)=2 NO(g) is 1.69×10-3 at 2300 K. A mixture consisting of 5.0 g of nitrogen and 2.0 g of oxygen in a container of volume 1.0 dm³ is heated to 2300 K and allowed to come to equilibrium. Calculate the mole fraction of NO at equilibrium.20
Be sure to answer all parts. Consider the following reaction: 2 H2(g) + S2(g) 2 H,S(g) with K = 1.1 x× 10'. (a) Write the expression for the equilibrium constant for this reaction. (b) Are the reactants or products favo at equilibrium? (c) Would you predict AH to be positive or negative? (d) Are the reactants or products lower in energy? (e) Would you predict this reaction to be fast or slow? (a) K = (b) (select) (c) AH would be (select) (d) The (select) are lower in energy. (e) (select)
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Oxygen can be converted into ozone by the action of lightning or electric sparks: 30₂(g) 203(g) For this reaction, AH = +68 kcal/mol (+285 kJ/mol) and K = 2.68 X 10-2⁹ at 25 °C. (a) Is the reaction exothermic or endothermic? (b) Mention whether the equilibrium shifts to the left or right when Increasing pressure by decreasing volume. (c) Mention whether the equilibrium shifts to the left or right when increasing the concentration. of O3(g). (d) Mention whether the equilibrium shifts to the left or right when increasing the temperature.
6 of 12 Part A I Review | Constants Periodic Table Determine the value of the equilibrium constant, Kgoal, for the reaction CO2(g) = C(s) + O2(g), Kgoal =? by making use of the following information: 1. 2CO2(g) + 2H2O(1) = CH;COOH(1) + 202(g), K = 5.40 x 10-16 2. 2H2 (g) + O2(g) = 2H,0(1), K2 1.06 x 1010 3. CH3COOH(1) = 2C(s) + 2H2(g) + O2(g), K3 = 2.68 x 10-9 Express your answer numerically. • View Available Hint(s) 中。 goal = 5:08 AM 19 3/1/2021

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