Question

Which statement is true regarding the stoichiometry of a reaction and the rate expression?

A. The stoichiometric coefficient is always different from the reaction order for a given species.

B. The stoichiometric coefficient for a given species may or may not be equal to the reaction order for that species.

C. The stoichiometric coefficient is always equal to the reaction order for a given species.

D. Stoichiometric coefficients can be used to determine the overall order of a reaction.

Answer 1

A. The stoichiometric coefficient is always different from the reaction order for a given species

This is false, they typically are similar, and the don't "have to"

B. The stoichiometric coefficient for a given species may or may not be equal to the reaction order for that species.

True, only in "elemental rate laws" this will be true

C. The stoichiometric coefficient is always equal to the reaction order for a given species.

False, since this depends on wether this follows elemental rate or not

D. Stoichiometric coefficients can be used to determine the overall order of a reaction.

This is sometimes true, but not always true, so statement must be "FALSE"