12) Calculate AS° (in JK' mol³) of the following reaction: 2NO; [g] → 2NO (g) +0₂ (g) = (S" JK mol: (0) 205 (NO)-211, (NO)=240) B) 136 (147) D) 172
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![12) Calculate AS° (in JK' mol³) of the following reaction:
2NO; [g] → 2NO (g) +0₂ (g)
=
(S" JK mol: (0) 205 (NO)-211, (NO)=240)
B) 136
(147)
D) 172](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd505ccdb-d31d-449e-82dd-9dc3d3223c88%2F3549cd02-030b-4840-b0c9-2d65eb3c97c3%2Frxeq5dr_processed.jpeg&w=3840&q=75)
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Solved in 2 steps
- C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l)ΔH = –2802.7 kJ mol –1a) Write an expression for the equilibrium constant for this reaction.b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium.c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction.d) Explain the effect on equilibrium of:i) Increasing temperatureii) Increasing pressureiii) Decreasing the concentration of oxygeniv) Increasing the concentration of carbon dioxidev) Adding a catalystAt 432 °C, Keq = 0.00309 for the reaction: (a) What is the value of Keq for the reaction NOBr(g) NO(g) + 1/2 Br₂(g)? Kea NO(g) + 1/2 Br₂(g) → NOBr(g) (b) What is the value of Keq for the reaction 2 NO(g) + Br₂(g) = 2 NOBr(g)? Kea = (c) What is the value of Keq for the reaction 2 NOBr(g) 2 NO(g) + Br₂(g)? Kea =Carbon dioxide from the atmosphere "weathers," or dissolves, limestone (CaCO3) by the reaction CACO3(8) + CO2(9) + H2O(1) → Ca²+ (aq) + 2HCO3¯(aq) Obtain AH° for this reaction using the following data: AH;(CaCO3(8)) = –1206.9 kJ/mol AH;(CO2(9)) = -393.5 kJ/mol AH;(H2O(1)) = –285.8 kJ/mol AH;(Ca²+ (ag) -542.8 kJ/mol AH;(HCO3¯(aq)) = -692.0 kJ/mol ΔΗ kJ %3D
- b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction СO(g) +2H2(g) — CHОН (g) At 298.15 K, AH.co (0)= -26.41 kcal/mol, AH AG.co (9)= -32.8079 kcal/mol, AG cH,oh(9)= -38.69 kcal/mol, °.CH20H(9)= -48.08 kcal/mol, The standard heat capacity of various components is given by, CO = a + bT + cT² + dT³, where C, is in cal/mol-K and T is in K b x10² с х105 d x10° Соmponent CH3OH а 4.55 2.186 -0.291 -1.92 CO 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.20793.2 The standard Gibbs energy of formation of H20 at 25.0 °C, 4G, is -228.57 kJ.mot', for a standard state of 1 atm. The reaction is: 2 H30 (g) - O (g) + 2H, (g) (a) Calculate 4 G° (kJ.mol) for the above reaction. (b) Calculate the value of the equilibrium constant, K, for the above reaction. (c) Calculate the value of K at 5 atm.b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?.co )= -26.41 kcal/mol, AH?.CH,OH()= -48.08 kcal/mol, AG.co )= -32.8079 kcal/mol, AG.CH,OH(@)= -38.69 kcal/mol, The standard heat capacity of various components is given by. CS = a + bT + cT2 + dT³, where C is in cal/mol-K and T is in K |Component b x10 e x105 d x10° a -0.291 CH3OH CO 4.55 2.186 -1.92 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079
- When ethanol (CH;CH;OH) burns in oxygen, carbon dioxide and water are formed. (i) Write the equation which describes this reaction. (ii) Using the data below, calculate the value for AH° for the combustion of ethanol. AH; (CH;CH2OH(1)) = - 277.0 kJmol1 AH, (CO2(g)) = - 393.7 kJmol1 AH: (H2O()) = - 285.9 kJmol1(a) (c) HO OH 1. BH3 2. H₂O₂, NaOH 3. PCC 4. CH3MgBr 5. H3O+ workup Na₂Cr₂O7 H₂SO4, H₂OIf Q = 71.3 and Keg = 0.227, the reaction favors %3D (A) (B) Products Reactants
- Give Detailed SolutionJ R = 8.314 mol·K F = 96,485 mol AG = AG° + RT · In(Q) ΔΕ ΔΕ-). In(Q) Half Reaction (Note: All given as reduction) E° (V) 02 (g) + 4 H"(aq) + 4 e 2 H20 (1) 1.229 |Z2 (s) + 2 e → 2Z° (aq) 0.426 3+ (aq) + 3 е A' → A (s) 0.292 2 H20 (I) + 2 e H2 (g) + 2 OH¯ (aq) - 0.828 G2+ (aq) + 2 e G (s) - 1.245 (aq) + 2 e¯ → M (s) - 1.893 Using a U-tube, a student sets up a non-spontaneous electrochemical cell with a battery connected to two carbon electrodes that are submerged in 1 MMZ2 (aq) solution (M is a metal and Z is an anion composed of the newly discovered element Z). Use the reference information given in the table above to answer the following three questions. Question 11 The electrode connected to the red wire (negative terminal on the battery) will... o produce bubbles and the pH will increase. o produce M (s) on the electrode and the pH will not change. o produce bubbles and the pH will decrease. o produce M (s) on the electrode and the pH will decrease. Question 12 The electrode…5.) Calculate the volume, in liters, of NaOH required to titrate the KHP in flask #2. (A7) – (A6) Volume of NaOH = 1000 mL/L 16.36 O.80 (A14) 1000 mL/L ||
