Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- A chem ngineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 134.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. TiCl (g) + 2H₂O(g) → TiO₂ (s) + 4HCl(g) 6C(s) + 6H₂(g) + 30₂(g) → C6H₁₂O6 (s) Explanation Check AH = -70. kJ AS = -172. AG = 3. kJ J - K Which is spontaneous? O this reaction the…arrow_forwardDetermine the standard reaction entropy, in J/mol*K, for the reaction of aqueous sodium carbonate with hydrochloric acid. S values for the reactants and products are given below. NaCO(aq) + 2 HCl(aq) 2 NaCl(aq) + HO() + CO(g) = NaCO(aq) = 61.1HCl(aq) = 56.5NaCl(aq) = 115.5HO() = 70.0CO(g) = 213.8arrow_forwardA chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 84.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = -181. kJ J AS = -507. K ? 2NO(g) – N, (g) + 0, (3) AG = Which is spontaneous? O this reaction O the reverse reaction O neither AH = -188, kJ AS = N,H¸ (g) + H, (g) → 2NH, (3) AG…arrow_forward
- A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 21.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. 2Al(s) + 3H₂O(g) Al₂O₂ (s) + 3H₂(g) 2NH3(g) - → N₂H₂(g) + H₂(g) AH = -951. kJ AS = -3233. AG = kJ Which is spontaneous? ΔΗ = 188. kJ AS = this reaction the reverse reaction neither J…arrow_forwardA chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 20.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = - - 1212. kJ J AS 4174. K Ś ? AG = 4H₂O₂ (1) + PbS (s) PbSO4 (s) + 4H₂O (1) ☐ kJ Which is spontaneous? this reaction the reverse reaction neither - 1237. KJ 6C (s) + 6H₂(g) + 30₂…arrow_forwardA chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 15.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = -1207. kJ J AS = -4236. K P,(g) + 6CL, (3) 4PCI, (g) AG = kJ Which is spontaneous? O this reaction O the reverse reaction O neither AH = -76. kJ AS = 2NO(g) + CL, (3) → 2NOC1(g)…arrow_forward
- A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 130.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. Al₂O3(s) + 2Fe(s) → 2Al(s) + Fe₂O3(s) CO₂(g) + 2H₂O(g) → CH₂(g) + 20₂(g) AH = 852. kJ AS = 2044. AG = | KJ Which is spontaneous? this reaction the reverse reaction neither = 803. kJ…arrow_forwardMatch equivalent statements. Standard Gibbs free energy of reaction 0 no preference for reactants or products at equilibrium Standard Gibbs free energy of reaction = 0 products dominate at equilibriumarrow_forwardA chemicai engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 135.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. ΔΗ - 1648. kJ AS = 4038. K 2Fe,0, (s) → 4Fe(s) + 30, (g) AG = ||kJ Which is spontaneous? this reaction the reverse reaction neither AH = - 803. kJ AS = K CH, (g) + 20,(g) → co,(g)…arrow_forward
- AH = 439. kJ J AS = 1285. K 4H, PO, (s) - P,010 (s) + 6H,0(1) AG = kJ Which is spontaneous? this reaction the reverse reaction neither AH = 852. kJ J AS = || K Al, 0, (s) + 2Fe(s) -→ 2A1(s) + Fe,0,(s) AG = 0. kJ Which is spontaneous? this reaction the reverse reaction neither O O Oarrow_forwarddont round and take your time pleasearrow_forwardA chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 33.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and A.S for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. N₂(g) + 3H₂(g) → 2NH₂(g) 2NO(g) N₂(g) + O₂(g) AH = -92. kJ AS = -214. AG = kJ Which is spontaneous? Othis reaction O the reverse reaction O neither AH = -181. kJ AS = J K J K AG =…arrow_forward
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