For the reaction , let be the rate of disappearance of , be the rate of appearance of , and be the r — Chemical Kinetics Chemistry Question
Question
For the reaction $2A \rightarrow 3B + 2C$, let $r_1$ be the rate of disappearance of $A$, $r_2$ be the rate of appearance of $B$, and $r_3$ be the rate of appearance of $C$. Which of the following mathematical relations is/are correct?
Answer: A,B,C,D
💡 Solution & Explanation
From stoichiometry, overall rate $r = \frac{r_1}{2} = \frac{r_2}{3} = \frac{r_3}{2}$. Thus, $3r_1 = 2r_2$ (A is correct), $r_1 = r_3$ (B is correct), $2r_2 = 3r_3$ (C is correct), and $r_2 = \frac{3}{2} r_1 = 1.5 r_1$ (D is correct).
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