Question

When dragons burn their victims, the following reaction takes place:

$2C+O_2⟶2C{O}_2$

The average rate of reaction could be expressed as?

• A.
• B.
• C.
• D. All of the above

Answer 1

The correct option is C

Let us look at the rate of reaction in full.

We saw that the reaction rate will be equal to the change in concentration of the participating species divided by the stoichiometric coefficients.

Also, we would have a minus sign in case of reactants and plus in case of products. This is done to make the rate always positive since change in concentration of reactants would be negative.

Therefore,