Question

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

If the dragon burned 1000 moles of O₂ in 10 seconds, what would be the rate of production of CO₂?

• A. 100 $molse{c}^{-1}$
• B. 200 $molse{c}^{-1}$
• C. 1000 $molse{c}^{-1}$
• D. 2000 $molse{c}^{-1}$

Answer 1

The correct option is B 200 $molse{c}^{-1}$

To find out how much CO₂ was produced, let us write down the rate law.


Let us calculate the amount of O₂ produced in 10 seconds. That would just be 100 x 10 right?
So, 1000 moles of O₂ would be produced in 10 seconds. Fitting for a dragon!

Now, from the rate law we can see that the amount of CO₂ would be 2 times that amount.


Therefore, rate of production of CO₂ would be 200 mol sec^-1