Consider the chemical reaction: (g) + 3(g) - 2(g). The rate of this reaction can be expressed in terms of time derivative of concentration of (g), (g) or (g). Identify the correct relationship amongs

Question

Consider the chemical reaction: $N_2$(g) + 3$H_2$(g) -> 2$NH_3$(g). The rate of this reaction can be expressed in terms of time derivative of concentration of $N_2$(g), $H_2$(g) or $NH_3$(g). Identify the correct relationship amongst the rate expressions

Prashant Kotian · Accepted Answer

Correct answer: A. By dividing the rate of change of concentration of reactants or products by their respective stoichiometric coefficients (with negative sign for reactants), we obtain: rate = -d[]/dt = -1/3 d[]/dt = +1/2 d[]/dt.

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