For the reaction R → P, the *instantaneous* rate of reaction is given …

Question

For the reaction R → P, the *instantaneous* rate of reaction is given by:

Accepted Answer

C. r = −d[R]/dt = +d[P]/dt (taking Δt → 0)

**Instantaneous rate** = derivative at a moment: r = −d[R]/dt = +d[P]/dt.
(Average rate uses finite Δt; instantaneous uses the limit Δt → 0, equivalent to the slope of the tangent at a point on the concentration-vs-time curve.)

Answer

r = [P] × [R]

Answer

r = −Δ[R]/Δt averaged over a long interval

Answer

r = Δ[R]/Δt

For the reaction R → P, the instantaneous rate of reaction is given by:

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