In a particular experiment at 300 ∘c, [no2] drops from 0.0100 to 0.00800 m in 100 s. the rate of appearance of o2 for this period is m/s. in a particular experiment at 300 , drops from 0.0100 to 0.00800 in 100 . the rate of appearance of for this period is . 4.0×10−3 2.0×10−3 2.0×10−5 4.0×10−5 1.0×10−5

Explanation:

The decomposition of follows the equation  

By definition, the rate of a chemical reaction can be expressed by  

The rate of appearance of is related to the rate of disappearance of by the stoichiometry. This means that, for each mole of that appears 2 moles of  are consumed. So  

a is the correct answer