4. Which statement concerning relative rates of reaction is correct for the chem

Question

4. Which statement concerning relative rates of reaction is correct for the chemical equation given below? 2 CH3OH(g) + 3 O2(g) 2 CO2(g) + 4 H2O(g) a. The rate of disappearance of CH3OH is equal to the rate of disappearance of O2. b. The rate of disappearance of CH3OH is two times the rate of appearance of H2O. c. The rate of disappearance of CH3OH is half the rate of appearance of CO2. d. The rate of appearance of H2O is two times the rate of appearance of CO2. e. The rate of appearance of H2O is four times the rate of disappearance of CH3OH.

Explanation / Answer

The stochiometry of the reaction is indicative of the rates of appearance of products and disappearance of reactants. Accordingly when two molecules of CO2 appear four molecules of water will be formed. Thus d, ie, the rate of appearance of H2O is two times the rate of appearance of CO2, is correct

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