Question

In the reaction: \(2H_2O_2 \rightarrow 2H_2O + O_2\), the rate of disappearance of \(H_2O_2\) is 0.2 mol/L/s. The rate of appearance of \(O_2\) is:

• A. 0.1 mol/L/s
• B. 0.2 mol/L/s
• C. 0.4 mol/L/s
• D. 0.05 mol/L/s

Hint:

Use coefficients to relate reaction rates.

Answer 1

The Correct Option is A

From stoichiometry, \[ \text{Rate of } O_2 = \frac{1}{2}\times0.2 = 0.1\ \text{mol/L/s} \]