The reaction $N_2O_5$ (in $CCl_4$ solution) $\to 2NO_2$ (solution) $+ \frac{1}{2}O_{2(g)}$ is of first order in $N_2O_5$ with rate constant $6.2 \times 10^{-1} \, s^{-1}$. What is the value of the rate of reaction when $[N_2O_5] = 1.25 \, mol \, L^{-1}$?
- A$7.75 \times 10^{-1} \, mol \, L^{-1} \, s^{-1}$
- B$6.35 \times 10^{-3} \, mol \, L^{-1} \, s^{-1}$
- C$5.15 \times 10^{-5} \, mol \, L^{-1} \, s^{-1}$
- D$3.85 \times 10^{-1} \, mol \, L^{-1} \, s^{-1}$
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The experimental data for the reaction $2A + B_2 \to 2AB$ is given below. Determine the rate equation for the reaction.
$Exp.$ $[A]_0$ $[B_2]_0$ $Rate \ (mol \ L^{-1} \ s^{-1})$ $(1)$ $0.50$ $0.50$ $1.6 \times 10^{-4}$ $(2)$ $0.50$ $1.00$ $3.2 \times 10^{-4}$ $(3)$ $1.00$ $1.00$ $3.2 \times 10^{-4}$
| $Exp.$ | $[A]_0$ | $[B_2]_0$ | $Rate \ (mol \ L^{-1} \ s^{-1})$ |
| $(1)$ | $0.50$ | $0.50$ | $1.6 \times 10^{-4}$ |
| $(2)$ | $0.50$ | $1.00$ | $3.2 \times 10^{-4}$ |
| $(3)$ | $1.00$ | $1.00$ | $3.2 \times 10^{-4}$ |
MediumAIPMT 1997
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