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Consider the formation of gaseous ammonia at 425K (same reaction as Question 1 ):
3H₂(g)+N₂(g)⇄2NH₃(g), ΔHr°=-91.8kJ/molrxn
S° values (JKmol)
N₂(g), 192
H₂(g), 131
NH₃(g), 193
a. Determine the value of ΔGr° for the reaction at 425K (not room temperature). Use your answer to determine the direction in which the reaction will proceed under standard conditions at 425 K. Pay careful attention to units.



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