Question

The desorption of a single molecular layer of n-butane from a single crystal of aluminum oxide...

The desorption of a single molecular layer of n-butane from a single crystal of aluminum oxide was found to be first order with a rate constant of 0.128/s at 150 K.

Part A

What is the half-life of the desorption reaction?

art B

If the surface is initially completely covered with n-butane at 150 K, how long will it take for 25% of the molecules to desorb?

Part C

For 50% to desorb?

Part D

If the surface is initially completely covered, what fraction will remain covered after 10 s ?

Part E

After 22 s ?

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