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For the endothermic reaction A2 (9) = 2A(g), a snapshot of...
MULTIPLE CHOICE. Choose the one alternative that best completes the oose the one alternati 48) 45)...
MULTIPLE CHOICE. Choose the one alternative that best completes the oose the one alternati 48) 45) Which is more soluble in an acidic solution than in pure water? A) Cul B) PbCl2 C) NaBr D) NaNO3 E) Ca3(PO4)2 49) 49) For the endothermic reaction A2(8)2A(g), a snapshot of an equilibrium mixture of A(g) and A2(8) may look as follows. (Each circle represents 1.0 mol of A atoms, and the volume of the box is 1.0 L.) o-o What is the...
For the following endothermic reaction system at equilibrium: 2SO3(g) <---> 2SO2(g) + O2(g) Choose the changes...
For the following endothermic reaction system at equilibrium: 2SO3(g) <---> 2SO2(g) + O2(g) Choose the changes that will shift the equilibrium position to the right. (Select all that apply.) Add Ne(g) Add SO2(g) Remove SO3(g) Decrease temperature Add a catalyst Increase temperature Decrease volume
Choose four ways in which the yield of ammonia in the reaction below can be improved...
Choose four ways in which the yield of ammonia in the reaction below can be improved for a given amount of Hz. N2(g) + 3H2(g) + 2NH3(9), AH® < 0 (Select all that apply.) decreasing the nitrogen or hydrogen concentration increasing the nitrogen concentration increasing the total pressure on the mixture increasing the temperature decreasing the total pressure on the mixture lowering the temperature removing the gaseous NH3 from the equilibrium by liquefying it removing the gaseous H or N2...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS <0, AG <0 (D) AH<0, AS > 0, AG>O (B) AH > 0, AS > 0, AG <0 (E) AH>0, AS <0, AG>0 (C) AH<0, AS <0, AG<0 5. For the reaction H, (g) +S (8) HS (g), AF- -20.2 kJ/mol and AS = +43.1 J/K mol. Which of these statements is true? (A) The reaction is only spontaneous at low temperatures. (B) The...
Practice Questions Exam 2 Fall 2019 9. The reaction profile represents the following chemical equation: AB-CD...
Practice Questions Exam 2 Fall 2019 9. The reaction profile represents the following chemical equation: AB-CD Calculate the activation energy (Ea) and AH of the reaction at 200 K Page 2 of 5 14. Consider the following reaction at 1700*C. 2CH ) CH.(g) + 3H2(g) Initially, the reaction mixture contains only [CH] -0.320 M. At equilibrium, the mixture contains [C,H,1 -0.070 M. What is the equilibrium constant for this reaction at 1700 °C? 1200 kJ 500 kJ 200 kJ Ea...
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9)...
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9) CO(g) + Cl (9) A) reaction will shift to the right B) reaction will shift to the left C) nothing will happen D) the equilibrium constant will change E) not enough information given to predict 2. The following reaction is exothermic (with A and B reactants) and at equilibrium. What will happen if heat is added? A+B 2 C + D A) more C...
MULTIPLE CHOICE. Choose the one alternative that best completes the oose the one alternati 48) 45) Which is more soluble in an acidic solution than in pure water? A) Cul B) PbCl2 C) NaBr D) NaNO3 E) Ca3(PO4)2 49) 49) For the endothermic reaction A2(8)2A(g), a snapshot of an equilibrium mixture of A(g) and A2(8) may look as follows. (Each circle represents 1.0 mol of A atoms, and the volume of the box is 1.0 L.) o-o What is the...
Choose four ways in which the yield of ammonia in the reaction below can be improved for a given amount of Hz. N2(g) + 3H2(g) + 2NH3(9), AH® < 0 (Select all that apply.) decreasing the nitrogen or hydrogen concentration increasing the nitrogen concentration increasing the total pressure on the mixture increasing the temperature decreasing the total pressure on the mixture lowering the temperature removing the gaseous NH3 from the equilibrium by liquefying it removing the gaseous H or N2...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS <0, AG <0 (D) AH<0, AS > 0, AG>O (B) AH > 0, AS > 0, AG <0 (E) AH>0, AS <0, AG>0 (C) AH<0, AS <0, AG<0 5. For the reaction H, (g) +S (8) HS (g), AF- -20.2 kJ/mol and AS = +43.1 J/K mol. Which of these statements is true? (A) The reaction is only spontaneous at low temperatures. (B) The...
Practice Questions Exam 2 Fall 2019 9. The reaction profile represents the following chemical equation: AB-CD Calculate the activation energy (Ea) and AH of the reaction at 200 K Page 2 of 5 14. Consider the following reaction at 1700*C. 2CH ) CH.(g) + 3H2(g) Initially, the reaction mixture contains only [CH] -0.320 M. At equilibrium, the mixture contains [C,H,1 -0.070 M. What is the equilibrium constant for this reaction at 1700 °C? 1200 kJ 500 kJ 200 kJ Ea...
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9) CO(g) + Cl (9) A) reaction will shift to the right B) reaction will shift to the left C) nothing will happen D) the equilibrium constant will change E) not enough information given to predict 2. The following reaction is exothermic (with A and B reactants) and at equilibrium. What will happen if heat is added? A+B 2 C + D A) more C...
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