final exam MC review file 5

final exam MC review file 5 - G1 SECTION G: EQUILIBRIUM...

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Unformatted text preview: G1 SECTION G: EQUILIBRIUM INDEX: G001 LEVEL: (U) ANSWER: KEYWORDS: ALTERNATIVE FORMAT: (TF) An increase in total pressure at constant temperature favors formation of the products in this reaction . Use each response in a separate question. In which reaction will an increase in total pressure at constant temperature favor formation of the products? (A) CaCO 3 (s) CaO (s) + CO 2 (g) (B) H 2 (g) + Cl 2 (g) 2HCl (g) (C) 2NO (g) + O 2 (g) 2NO 2 (g) (D) COCl 2 (g) CO (g) + Cl 2 (g) INDEX: G002 LEVEL: (U) ANSWER: KEYWORDS: thermochemistry, oxidation and reduction, industrial chemistry ALTERNATIVE FORMAT: (FR) Consider the reaction 2SO 2 + O 2 2SO 3 + heat Explain why SO 3 is most stable under conditions of high pressure and low temperature. Consider the reaction 2SO 2 + O 2 2SO 3 + heat Under which conditions is SO 3 most stable? (A) high pressure and high temperature (B) high pressure and low temperature (C) low pressure and high temperature (D) low pressure and low temperature INDEX: G003 LEVEL: (U) ANSWER: KEYWORDS: industrial chemistry ALTERNATIVE FORMAT: (FR) Discuss how this equilibrium system will change with increasing pressure, given a constant temperature. N 2 (g) + 3H 2 (g) 2 NH 3 (g) At constant temperature, an increased pressure applied to the equilibrium system N 2 (g) + 3H 2 (g) 2 NH 3 (g) will produce what change? (A) increase the concentration and amount of NH 3 (B) increase the concentration and amount of H 2 (C) reduce the partial pressure of NH 3 (D) cause crystallization of NH 3 (SA) = short answer; (FR) = free response; (TF) = true/false (U) = understanding; (A) = analysis; (G) = generalization Equilibrium G2 INDEX: G004 LEVEL: (U) ANSWER: KEYWORDS: kinetics ALTERNATIVE FORMAT: (FR) The equilibrium constant for the gaseous reaction C + D E + 2 F is 3.0 at 50 C. In a 2.0 L flask at 50 C are placed 1.0 mol of C , 1.0 mol of D , 1.0 mol of E , and 3.0 mol of F . What changes in concentration will occur? The equilibrium constant for the gaseous reaction C + D E + 2 F is 3.0 at 50 C. In a 2.0 L flask at 50 C are placed 1.0 mol of C , 1.0 mol of D , 1.0 mol of E , and 3.0 mol of F . Initially, the reaction will (A) proceed at equal rates in both directions. (B) proceed more rapidly to form E and F . (C) proceed more rapidly to form C and D . (D) not occur in either direction. INDEX: G005 LEVEL: (U) ANSWER: KEYWORDS: ALTERNATIVE FORMAT: (TF) Consider the reaction . A fixed amount of material is enclosed in a reaction vessel at constant temperature. If the volume of the reaction vessel were decreased, the equilibrium would be shifted toward the products. Use each response in a separate question....
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final exam MC review file 5 - G1 SECTION G: EQUILIBRIUM...

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