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Quiz 6 - Version 136 Quiz 6 Laude(52455 This print-out...

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Version 136 – Quiz 6 – Laude – (52455) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. - d [A] adt = k [A] = [A] 0 - akt t 1 / 2 = [A] 0 2 ak - d [A] adt = k [A] ln [A] = ln [A] 0 - akt t 1 / 2 = ln 2 ak - d [A] adt = k [A] 2 1 [A] = 1 [A] 0 + akt t 1 / 2 = 1 ak [A] 0 ln a b = ln a - ln b rate = k [A] x [B] y = - 1 a × d [ A ] dt k = A exp parenleftbigg - E a RT parenrightbigg ln k 2 k 1 = E a R parenleftbigg 1 T 1 - 1 T 2 parenrightbigg 001 5.0 points Express the rate of the following reaction in terms of the [NaOH]. C 2 H 4 Br 2 +2 NaOH -→ C 2 H 2 +2 NaBr+2 H 2 O 1. rate = Δ[NaOH] Δ t 2. rate = Δ[NaOH] t 3. rate = - Δ[NaOH] t correct 4. rate = - 2Δ[NaOH] Δ t 5. rate = 2Δ[NaOH] Δ t Explanation: rate = - [C 2 H 4 Br 2 ] Δ t = - [NaOH] t = [C 2 H 2 ] Δ t = [NaBr] t = [H 2 O] t 002 5.0 points Consider the combined Arrhenius equation. Which of the following correctly expresses T 1 in terms of the other variables? 1. T 1 = parenleftbigg ln( k 2 /k 1 ) E a /R - 1 T 2 parenrightbigg - 1 2. T 1 = parenleftbigg E a /R ln( k 2 /k 1 ) + T 2
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