Q: Given the following data, what is the missing initial rate for a reaction with an order of $1.5$? $\begin{array}{cc} [A]~(\text{mol L}^{-1}) & \text{Initial Rate}~(\text{mol L}^{-1}~\text{s}^{-1}) \\ 9.74 \times 10^{-5} & 4.6 \times 10^{-3} \\ 6.83 \times 10^{-4} & ? \\ 9.74 \times 10^{-4} & 1.2 \times 10^{-2} \\ \end{array}$

1.0 \times 10^{-2}~\text{mol L}^{-1}~\text{s}^{-1}

Question 1

Given the reaction $2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)$, which of the following correctly expresses the rate of reaction with respect to $[SO_2]$?

Accepted Answer

$\displaystyle -\frac{1}{2} \frac{\Delta [SO_2]}{\Delta t}$

Question 2

For the reaction $2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)$, which of the following correctly expresses the rate of reaction with respect to $[O_2]$?

Accepted Answer

$\displaystyle -\frac{\Delta [O_2]}{\Delta t}$

Question 3

For the reaction $2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)$, which of the following correctly expresses the rate of reaction with respect to $[SO_3]$?

Accepted Answer

$\displaystyle \frac{\Delta [SO_3]}{\Delta t}$

Question 4

Given the reaction $2NO(g) + Cl_2(g) \rightarrow 2NOCl(g)$, which of the following correctly expresses the rate of reaction with respect to $[NOCl]$?

Accepted Answer

$\displaystyle \frac{\Delta [NOCl]}{\Delta t}$

Question 5

Given the reaction $2O_3(g) \rightarrow 3O_2(g)$, which of the following correctly expresses the rate of reaction with respect to $[O_2]$?

Accepted Answer

$\displaystyle \frac{3}{2} \frac{\Delta [O_2]}{\Delta t}$

Question 6

Given the reaction $2O_3(g) \rightarrow 3O_2(g)$, which of the following correctly expresses the rate of reaction with respect to $[O_3]$?

Accepted Answer

$\displaystyle -\frac{1}{2} \frac{\Delta [O_3]}{\Delta t}$

Question 7

Given the reaction $N_2(g) + 3H_2(g) \rightarrow 2NH_3(g)$, which of the following correctly expresses the rate of reaction with respect to $[H_2]$?

Accepted Answer

$\displaystyle -\frac{1}{3} \frac{\Delta [H_2]}{\Delta t}$

Question 8

Given the reaction $N_2(g) + 3H_2(g) \rightarrow 2NH_3(g)$, which of the following correctly expresses the rate of reaction with respect to $[NH_3]$?

Accepted Answer

$\displaystyle \frac{\Delta [NH_3]}{\Delta t}$

Question 9