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Cyclopropane () reacts to form propene () in the gas phase. The reaction is first order in cyclopropane and has a rate constant of 5.87x10-4 s-1 at 485oC. If a 2.6-L reaction vessel initially contains 725 torr of cyclopropane at 485oC, how long will it take for the partial pressure of cyclopropane to drop to below 104 torr?

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Brian Hingpit
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15 Jan 2021

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Related questions

In the gas phase at 500.°C, cyclopropane reacts to form propene in a first-order reaction.

The figure shows the natural logarithm of the concentration of cyclopropane (in mol/L) plotted versus time.

(a) Calculate the first-order rate constant, k. __________ s -1

(b) Determine the initial concentration of cyclopropane in this experiment. __________mol L-1

At 500 ∘C, cyclopropane (C3H6) rearranges to propene (CH3−CH=CH2). The reaction is first order, and the rate constant is 6.7×10−4s−1. If the initial concentration of C3H6 is 0.0550 M.

What is the half-life (in minutes) of this reaction?

How many minutes will it take for the concentration of cyclopropane to drop to 9.25 % of its initial value?

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