Explain how the rate of reaction depends on c | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(N/A) The rate of a reaction depends on the change in concentration of reactants or products over a specific time interval. This is illustrated by the

Vedclass · Accepted Answer

Vedclass · Answer

(N/A) The rate of a reaction depends on the change in concentration of reactants or products over a specific time interval. This is illustrated by the following graphs:
| Feature | Reactant Concentration vs Time | Product Concentration vs Time |
| :--- | :--- | :--- |
| Average Rate $(R_{av})$ | $R_{av} = -\frac{\Delta[R]}{\Delta t} = -\frac{[R_2] - [R_1]}{t_2 - t_1}$ | $R_{av} = \frac{\Delta[P]}{\Delta t} = \frac{[P_2] - [P_1]}{t_2 - t_1}$ |
| Concentration Trend | Decreases with time | Increases with time |
| Slope | Negative | Positive |
| Initial State | Intercept = $[R]_0$ (Maximum) | Intercept = $0$ (Zero) |
As shown in the graphs,the rate of reaction is determined by the slope of the tangent to the curve at any given time $t$ $(r_{inst} = \pm \frac{d[concentration]}{dt})$.

Explain how the rate of reaction depends on concentration and time using graphs.

Similar Questions

For the reaction $N_{2(g)} + 3H_{2(g)} \rightarrow 2NH_{3(g)}$,the rate of disappearance of $N_{2(g)}$ is $2.22 \times 10^{-3} \ mol \ dm^{-3} \ s^{-1}$. What is the rate of appearance of $NH_{3(g)}$?

For the reaction,$CH_3Br_{(aq)} + OH_{(aq)}^{-} \longrightarrow CH_3OH_{(aq)} + Br_{(aq)}^{-}$,the rate of consumption of $OH_{(aq)}^{-}$ is $x \ mol \ dm^{-3} \ s^{-1}$. What is the rate of formation of $Br_{(aq)}^{-}$ (in $mol \ dm^{-3} \ s^{-1}$)?

In the contact process for the manufacture of sulfur trioxide,the reaction is $2SO_{2(g)} + O_{2(g)} \rightarrow 2SO_{3(g)}$. If the rate of reaction is given by $-\frac{d[O_2]}{dt} = 2.5 \times 10^{-4} \, mol \, L^{-1} \, s^{-1}$,what is the rate of disappearance of $SO_2$?

For a general chemical reaction $2A + 3B \rightarrow \text{Products}$,if the rate of disappearance of $A$ is $r_1$ and that of $B$ is $r_2$,then the relationship between $r_1$ and $r_2$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module