The kinetic data recorded at 278 K for the reaction NH_4 ^ + (a q)+NO_2 ^ - (a q) arrow N_2(g)+2 H_2 O(I) is Set No. [NH_4^ + ] / M [NO_2^ - ] / M Rate of reaction/ M s-1 1 0.24 0.10 7.2 × 10^ -6 2 0.12 0.10 3.6 × 10^

Correct answer: C. k [NH_4^ + ][NO_2^ - ]and M^ -1 ~s^ -1 No Solution

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Olympiad workbook · NSEC · Chemical Kinetics

The kinetic data recorded at 278 K for the reaction NH_4 ^ + (a...

The kinetic data recorded at 278 K for the reaction

\mathrm{NH}_4{ }^{+}(a q)+\mathrm{NO}_2{ }^{-}(a q) \rightarrow \mathrm{N}_2(g)+2 \mathrm{H}_2 \mathrm{O}(I)

Set No.	\left[NH_4^{+}\right] / M $</th> <th>\left[NO_2^{-}\right] / M$	Rate of reaction/ M s-1
1	$0.24$	$0.10$	$7.2 \times 10^{-6}$
2	$0.12$	$0.10$	$3.6 \times 10^{-6}$
3	$0.12$	$0.15$	$5.4 \times 10^{-6}$

The kinetic rate expression and the unit of rate constant (

k

) of the above reaction are respectively

A $k$ \left[\mathrm{NH}}_{4}^{+}\right] $\left[\mathrm{NO}_2^{-}\right]$ and $\mathrm{M} \mathrms^{-1}$
B $k \left[\mathrm{NH}_4^{+}\right]and$ \mathrms^{-1}
C $k \left[\mathrm{NH}_4^{+}\right]\left[\mathrm{NO}_2^{-}\right]and$ \mathrm{M}^{-1} $\mathrm{~s}^{-1}$
D $k \left[\mathrm{NO}_2^{-}\right]and$ \mathrms^{-1}

C. $k \left[\mathrm{NH}_4^{+}\right]\left[\mathrm{NO}_2^{-}\right]and$ \mathrm{M}^{-1} $\mathrm{~s}^{-1}$

No Solution