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Chemistry Question on Laws of Chemical Combinations

For the chemical reaction N2(g)+3H2(g)=2NH3(g)N_2(g)+ 3H_2(g)= 2NH_3(g) the correct option is :

A

−13d[H2]dt=−12d[NH3]dt-\frac13\frac{d[H_2]}{dt}=-\frac12\frac{d[NH_3]}{dt}

B

−d[N2]dt=2d[NH3]dt-\frac{d[N_2]}{dt}=2\frac{d[NH_3]}{dt}

C

−d[N2]dt=12d[NH3]dt-\frac{d[N_2]}{dt}=\frac12\frac{d[NH_3]}{dt}

D

3d[H2]dt=2d[NH3]dt3\frac{d[H_2]}{dt}=2\frac{d[NH_3]}{dt}

Answer

−d[N2]dt=12d[NH3]dt-\frac{d[N_2]}{dt}=\frac12\frac{d[NH_3]}{dt}

Explanation

Solution

The correct option is (C) :−d[N2]dt=12d[NH3]dt-\frac{d[N_2]}{dt}=\frac12\frac{d[NH_3]}{dt}