For the following reaction: C(graphite) + H₂O(g) → CO(g) + H₂(g) The standard free energy of formation AG, (kJ/mol) are given as: C(graphite) O H₂(8) CO(g) -137.3 H₂O(g) -228.6 0 Determine AG° = 91.3 At 25°C, the equilibrium constant Kp 1.00E+3) kJ (one sig fig; scientific example:

For the following reaction: C(graphite) + H₂O(g) → CO(g) + H₂(g) The standard free energy of formation AG, (kJ/mol) are given as: C(graphite) O H₂(8) CO(g) -137.3 H₂O(g) -228.6 0 Determine AG° = 91.3 At 25°C, the equilibrium constant Kp 1.00E+3) kJ (one sig fig; scientific example:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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6. For a chemical reaction of: 3A + B 2C at 310 K for the initial conditions of: [A] = 25 mM, [B] = 52 mM, [C] = 13 mM with %3D H = 7.27 kJ/mole, u, =8.34 kJ/mole, 4 = 0.56 kJ/mole Calculate the value of AG for this process. Calculate the value of AG for this process. (A) (B) (C) Calculate K, for this process. (D) Will this reaction spontaneously proceed in the forward or reverse direction? Why?
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(28) The standard Gibbs free energy associated with the following reaction is -91.2 kJ: HCI (g) + NH3 (g) → NH,CI (s) What will be the value of AG,nn if the reaction takes place at 42.2°C, the partial pressure of HCI (g) is 0.788 atm and the partial pressure of NH3 (g) is 0.284 atm? (A) (B) -95.1 kl -90.7 kl (C) (D) (E) 3.93 kJ noltemol or ni lu bluos noinsou -79.5 kJ -87.3 kJ
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a) For a reaction with AH = -152.6 kJ mol-¹ and AS°= -543.8 J K-¹ mol-¹ at 25 °C, how will AGº change if the reaction temperature is increased? Explain your answer. b) Calculate the equilibrium constant for the reaction at 80 °C, showing your working (assume AH and AS° are temperature independent).
aqueous solution, and 0.545 g lead (II) bromide A chemist fills a reaction vessel with 0.390 M lead (II) (Pb2+) aqueous solution, 0.591 M bromide (Br) ad (PbBr2) solid at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: Pb2+(aq) + 2Br (aq) = PbBr₂ (s) Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule. pla 18 Ar
Calculate AG° for the reaction shown below using the provided thermodynamic properties information. H2O2 (1) → 2 H2O () + O2 (g) Substance AH°; (kJ/mol) AS° (J/(mol•K)) H2O2 (1) - 187.8 232.9 H20 (1) -285.83 69.91 O2 (g) 205.0 -396.4 kJ/mol -350.5 kJ/mol -33.70 kJ/mol -1105 kJ/mol -417.2 kJ/mol
Calculate the standard free-energy change AG® and the equilibrium constant K, for the following reaction at 25°C. CO(9) + 2H2 (9) CH; OH(9) AG¡ (kJ/mol) Substance CO(g) H2 (9) CHOН (9) -137.2 -162.0 AG" = kJ Ky
A chemist fills a reaction vessel with 0.273 M lead (II) (Pb²") aqueous solution, 0.961 M bromide (Br) aqueous solution, and 0.448 g lead (II) bromide (PbBr.) solid at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: Pb (aq) + 2Br (aq) PbBr₂(s) 1 Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule.
Given the dissociation of methane to graphite (C) and hydrogen gas. For the methane at 298K, Given the following data: kJ = -74.85- mol = -80.67 mol · K A,GE.graphite = A,Gån = 0 %3D Solve the following: a. Calculate the equilibrium constant (K) of the dissociation of methane at 298K with the appropriate units. b. Assuming that enthalpy is independent of temperature, Calculate the equilibrium constant (K) of methane dissociation at 1000 K. C. Calculate the ratio between the amounts of methane and hydrogen gas at 298 K and 0.2 bar.
Carbon dioxide dissolves in water to form carbonic acid. Estimate the thermodynamic equilibrium constant for this reaction using the AG; values in the table. Substance AG; (kJ/mol) H,CO, (aq) -616.1 H,O(1) -237.1 CO,(g) -394.4 K = Carbonic acid then ionizes in water (K = 4.5 x 10-7). Ignoring K2, estimate K for the overall process by which CO, and H,O form H* and HCO,. K = What is the pressure of CO, in equilibrium with carbonated water at 25 °C and pH = 4.78? Роо, atm
A chemist fills a reaction vessel with 0.137 g calcium phosphate (Ca, (PO,) solid, 0.349 M calcium (Ca ) aqueous solution, and 0.240 M phosphate (Po,") 3- POA aqueous solution at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: Ca3 (PO4),(s) → 3Ca (aq) + 2PO, (aq) 4. Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule. kJ