Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + O2 (g) The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below. NO3 (g) NO2 (g) O2 (g) ∆Hof (kJ/mol) 70.92 33.18 0 Som (J/K-mol) 252.55 239.95 205.03 Note that ∆Hof and Som are temperature independent. Which of the following statements is true about the above reaction? Choose one option only. Options: a. Under the standard state, the Gibbs free energy change of the reaction ∆Gorxn increases as the temperature is increased. b. The reaction is endothermic. c. The reaction is product-favored at 25 oC. d. The Gibbs free energy change of the reaction will become zero at high enough temperatures. e. Under the standard state, the reaction is non-spontaneous at all temperatures.
Consider the following reaction under the standard state.
2 NO3 (g) = 2 NO2 (g) + O2 (g)
The standard molar enthalpy of formation and the standard molar entropy of recants and products are given below.
NO3 (g) NO2 (g) O2 (g)
∆Hof (kJ/mol) 70.92 33.18 0
Som (J/K-mol) 252.55 239.95 205.03
Note that ∆Hof and Som are temperature independent.
Which of the following statements is true about the above reaction? Choose one option only.
Options:
a. Under the standard state, the Gibbs free energy change of the reaction ∆Gorxn increases as the temperature is increased.
b. The reaction is endothermic.
c. The reaction is product-favored at 25 oC.
d. The Gibbs free energy change of the reaction will become zero at high enough temperatures.
e. Under the standard state, the reaction is non-spontaneous at all temperatures.
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