If the reaction, P + Q → R + S, is described as being of zero-order with respect to P, it means that:
Correct answer: D. The rate of reaction is independent of the concentration of P
- A. P is a catalyst in this reaction
- B. No P molecules possess sufficient energy to react
- C. The concentration of P does not change during the reaction
- D. The rate of reaction is independent of the concentration of P
- E. The rate of reaction is proportional to the concentration of Q
Explanation
If the order of reaction with respect to P is 0 (zero), this means that the concentration of P doesn't affect the rate of reaction. Mathematically, any number raised to the power of zero (x0) is equal to 1. That means that that particular term disappears from the rate equation.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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