Use standard free energies of formation to calculate G at 25 C for each reaction in Problem
Question:
Use standard free energies of formation to calculate ΔG° at 25 °C for each reaction in Problem 61. How do the values of ΔG° calculated this way compare to those calculated from ΔH° and ΔS°? Which of the two methods could be used to determine how ΔG° changes with temperature?
Problem 61
For each reaction, calculate ΔH°rxn, ΔS°rxn, and ΔG°rxn at 25 °C and state whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 25 °C?
Transcribed Image Text:
2 NO₂(g) HCI(g) + NH3(g) a. N₂04(g) b. NH4Cl(s) c. 3 H₂(g) + Fe₂O3(s) d. N₂(g) + 3 H₂(g) →→→ 2 NH3(g) 2 Fe(s) + 3 H₂O(g)
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a 28 kJ b 912 kJ c 564 kJ d ...View the full answer
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