Rate of a Chemical Reaction

The unit of rate of reaction is _____.

The quantitative estimation of change in the rate of reaction with change in concentration does not always follow stoichiometric equation. Justify.

The slope obtained by drawing a tangent at time $\mathrm{t}$ on the curve for the concentration of reactants vs time is equal to instantaneous rate.

If the rate with respect to ${\mathrm{O}}_2, \mathrm{NO}$ and ${\mathrm{NO}}_2$ are, respectively $-\frac{∆\left[{\mathrm{O}}_2\right]}{∆\mathrm{t}}, -\frac{1}{2}\frac{∆\left[\mathrm{NO}\right]}{∆\mathrm{t}}, +\frac{1}{2}\frac{∆\left[{\mathrm{NO}}_2\right]}{∆\mathrm{t}}$ then the corresponding chemical equation is $2\mathrm{NO}+{\mathrm{O}}_2\to 2{\mathrm{NO}}_2$.

How are the reactions classified on the basis of rates of reactions? Give examples.

What are the units for the rate of the reaction $\mathrm{A}\to \mathrm{B}$?

For a reaction $\mathrm{A}\to \mathrm{B}, ∆{\mathrm{C}}_{\mathrm{B}}$ is $0.01 \mathrm{mol}/\mathrm{L}$ in $20 \mathrm{s}$, what is the average rate of reaction?

Define instantaneous reactions.

If ${\mathrm{K}}_{\mathrm{c}}$ for the formation of $\mathrm{HI}$ from ${\mathrm{H}}_2$ and ${\mathrm{I}}_2$ is $48$, then ${\mathrm{K}}_{\mathrm{c}}$ for decomposition of $1$ mole of $\mathrm{HI}$ is _____.

$$\begin{gathered} \mathrm{A} =0.144 \\ \mathrm{B} =1.144 \\ \mathrm{C} =0.014 \end{gathered}$$

Enter your correct answe as A, B or C.

In the reaction $2\mathrm{NO}\left(\mathrm{g}\right)+2{\mathrm{H}}_2\left(\mathrm{g}\right)\to {\mathrm{N}}_2\left(\mathrm{g}\right)+2{\mathrm{H}}_2\mathrm{O}$, if initial concentration of hydrogen is kept constant and the concentration of $\mathrm{NO}$ is doubled, the rate of reaction increases by four times. This shows that rate is directly proportional to _____.

The rate of _____ reactions cannot be determined experimentally.
 

In the reaction $\mathrm{A}+\mathrm{B}\to \mathrm{C}, \mathrm{r}=\mathrm{k}\left[\mathrm{A}\right]$, if $\left[\mathrm{A}\right]$ is increased by three times then the difference in the rate is _____ of the initial rate.

If the following reaction $\mathrm{A}\to 2\mathrm{B}+\mathrm{C}$, rate constant is$0.0002 {\mathrm{Ms}}^{-1}$. If we start with $2 \mathrm{M} \mathrm{of} \mathrm{A}$ then Conc. of $\mathrm{B}$after ten minutes is 

At high temperatures, ethyl chloride produces $\mathrm{HCl}$ and ethylene by the following first order reaction:

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl} --> \mathrm{HCl} + {\mathrm{C}}_2{\mathrm{H}}_4$

In an experiment, when the initial concentration of ethyl chloride was $0.01 \mathrm{M}$, the rate of the reaction was found to be $1.6 \times {10}^{-8}$ m/s. What will be the rate of reaction if the initial concentration of ethyl chloride is $0.07 \mathrm{M}$?

For a certain reaction $\mathrm{X}$, rate $= 0.7{\mathrm{Z}}_{\mathrm{AB}}\mathrm{e}{ }^{-\mathrm{E}{ }_{\mathrm{A}} /\mathrm{RT}}$ .

It is seen that for another reaction, $\mathrm{Y}$, rate = ${\mathrm{Z}}_{\mathrm{AB}}\mathrm{e} -\mathrm{E}{{ }_{\mathrm{A} }}^{/\mathrm{RT}}$ .

Based on the above, what can be said about reactions X and Y?

The value of ${\mathrm{K}}_{\mathrm{c}} = 4.24$ at $800 \mathrm{K}$ for the reaction,

${\mathrm{CO}}_{\left(\mathrm{g}\right)} + {\mathrm{H}}_2{\mathrm{O}}_{ \left(\mathrm{g}\right) }$$\to {\mathrm{CO}}_{2\left(\mathrm{g}\right)} + {\mathrm{H}}_{2\left(\mathrm{g}\right)}$

Calculate equilibrium concentrations of ${\mathrm{CO}}_2, {\mathrm{H}}_2, \mathrm{CO} \mathrm{and} {\mathrm{H}}_2\mathrm{O} \mathrm{at} 800 \mathrm{K}$, if only $\mathrm{CO} \mathrm{and} {\mathrm{H}}_2\mathrm{O}$ are present initially at concentration of $0.10 \mathrm{M}$ each ?

The rate of reaction for $\mathrm{A}\to \mathrm{Products}$ is $10 \mathrm{moles}/\mathrm{lit}/\mathrm{minute}$ when ${\mathrm{t}}_1=2 \min$. The rate of reaction when ${\mathrm{t}}_2=12 \min$, in the same unit is ;

Consider the reaction :

${\mathrm{KClO}}_3+6{\mathrm{FeSO}}_4+3{\mathrm{H}}_2{\mathrm{SO}}_4\to \mathrm{KCl}+3{\mathrm{Fe}}_2{\left({\mathrm{SO}}_4\right)}_3+3{\mathrm{H}}_2\mathrm{O}$ 

If concentration of ${\mathrm{FeSO}}_4$ decreases from $0.9 \mathrm{M}$ to $0.3 \mathrm{M}$ in $10$ second, the rate of formation of $\mathrm{KCl}$ is in the above reaction would be (In $\mathrm{M} {\sec }^{-1}$).

For the reaction ${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}+{\mathrm{H}}_2\mathrm{O}\stackrel{ {\mathrm{H}}^{+} }{\to }{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6+{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$, write the rate of reaction expression.

Rate of reaction is the change in concentration of any one of the reactants or any one of the products in unit time. Express the rate of the following reaction in terms of reactants and products:

$2\mathrm{HI}\stackrel{ }{\to }{\mathrm{H}}_2+{\mathrm{I}}_2$