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Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + 02 (g) The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below. NO3 (g) NO2 (g) 02 (g) AH°F (k//mol) 70.92 33.18 s°m U/K-mol) 252.55 239.95 205.03 Note that AHOf and S°m are temperature independent. Which of the following statements is true about the above reaction?

Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + 02 (g) The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below. NO3 (g) NO2 (g) 02 (g) AH°F (k//mol) 70.92 33.18 s°m U/K-mol) 252.55 239.95 205.03 Note that AHOf and S°m are temperature independent. Which of the following statements is true about the above reaction?

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter16: Thermodynamics: Directionality Of Chemical Reactions
Section: Chapter Questions
Problem 93QRT: The standard molar entropy of iodine vapor, I2(g), is 260.7 J Kl mol-1 and the standard molar...
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Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + 02 (g) The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below. NO3 (g) NO2 (g) 02 (g) AH°F (k/mol) 70.92 33.18 s°m U/K-mol) 252.55 239.95 205.03 Note that AHOf and S°m are temperature independent. Which of the following statements is true about the above reaction? a. The reaction is endothermic. b.The reaction is product-favored at 25 °C. c. Under the standard state, the reaction is non-spontaneous at all temperatures. Under the standard state, the Gibbs free energy change of the reaction AG°rxn increases as temperature is d. increased. O e. The Gibbs free energy change of the reaction will become zero at high enough temperatures.
Transcribed Image Text:Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + 02 (g) The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below. NO3 (g) NO2 (g) 02 (g) AH°F (k/mol) 70.92 33.18 s°m U/K-mol) 252.55 239.95 205.03 Note that AHOf and S°m are temperature independent. Which of the following statements is true about the above reaction? a. The reaction is endothermic. b.The reaction is product-favored at 25 °C. c. Under the standard state, the reaction is non-spontaneous at all temperatures. Under the standard state, the Gibbs free energy change of the reaction AG°rxn increases as temperature is d. increased. O e. The Gibbs free energy change of the reaction will become zero at high enough temperatures.
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