For the reaction, A + B → 2B + C,___________________?
Correct answer: B. rA = -rB
- A. rA = rB
- B. rA = -rB
- C. rA = 2rB
- D. rA = rB/2
Explanation
The net stoichiometric coefficient of A is −1, while that of B is +1 because B is both consumed and produced, with one net mole formed. Thus the species rates have equal magnitude and opposite signs: rA = −rB.
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