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Question:

For the chemical reaction N_2(g) + 3H_2(g) ⇌ 2NH_3(g), the correct option is:

-13d[H_2]dt=-12[NH_3dt

-d[N_2]dt=12d[NH_3]dt

-d[N_2]dt=2d[NH_3]dt

3d[H_2]dt=2d[NH_3]dt

Solution:

Correct option is C. -d[N_2]/dt = 2d[NH_3]/dt
N_2 + 3H_2 ⇌ 2NH_3
rate of reaction is given as -d[N_2]/dt = -1/3d[H_2]/dt = +1/2d[NH_3]/dt