Question

how will the rate of reaction between carbon mono oxide and oxygen change if concentration of initial compounds will increase by 5 times

Answer 1

Answer on Question #77057, Chemistry / Organic Chemistry

Question:

How will the rate of reaction between carbon monoxide and oxygen change if concentration of initial compounds will increase by 5 times?

Solution:

The balanced equation:

$$2 \mathrm{CO} + \mathrm{O}_2 \rightarrow 2 \mathrm{CO}_2$$

Rate of the reaction: $r_{\text{init}} = k \cdot [\mathrm{CO}]^2 \cdot [\mathrm{O}_2]$ , where $k$ is rate constant.

So, if concentration will increase by 5 times, the rate will be:

$$r = k \cdot (5 [ \mathrm{CO} ]) ^ {2} \cdot (5 [ \mathrm{O}_2 ]) = 5 ^ {2} \cdot 5 \cdot (k \cdot [ \mathrm{CO} ] ^ {2} \cdot [ \mathrm{O}_2 ]) = 125 \cdot r _ {\text{init}}$$

Answer:

125 times

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