At 1000 ° C, cyclobutane (C₄H₈) decomposes in a first order reaction with a very high rate constant of 87 sec^{- 1} to two molecules of ethylene (C₂H₄). C₄H₈ (g)→2 C₂H₄ (g) If the initial concentration of C₄H₈ is 10.00 M, what is the concentration after 0.0200 seconds?

Question

Quizplus · Accepted Answer

For a first-order reaction, the concentration at time t can be calculated using the formula [A] = [A]₀ * e^(-kt). Substituting the given values: [A]₀ = 10.00 M, k = 87 s⁻¹, t = 0.0200 s, we get [A] = 10.00 * e^(-87 * 0.0200) = 1.76 M.

At 1000 ° C, Cyclobutane (C4H8) Decomposes in a First

At 1000 ° C, Cyclobutane (C₄H₈) Decomposes in a First