The % yield of ammonia as a function of time in the reaction
N2(g) + 3H2(g) ⇌ 2NH3 (g), ΔH < 0
at (P, T1) is given below:

If this reaction is conducted at (P, T2) , with T2 > T1, the % yield of ammonia as a function of time is represented by :
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N2(g) + 3H2(g)
N2(g) + 3H2(g) 2NH3(g) ; H < 0