A stretched-out polymer has lower entropy than a contracted one (think back to the rubber band...

A stretched-out polymer has lower entropy than a contracted one (think back to the rubber band problem). Applying mechanical forces to a polymer stretches it out, and it is also more likely to react by breaking bonds along the polymer chain (compared to the contracted case). a. Draw the reaction energy profile for the zero-force and mechanically biased cases. b. Use the Arrhenius expression to explain why the mechanochemical bond breaking is faster

Expert Solution

queen_honey_blossom answered 2 years ago

Temperature has a relatively unusual effect on rubber. Assume that the rubber band is governed mainly...

Temperature has a relatively unusual effect on rubber. Assume that the rubber band is governed mainly by entropic elasticity, what do you expect about a stretched rubber band when heated? Why?

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Find a wide (³ 5 mm) rubber band (I have some if you need one). Touch...

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Consider an ideal massless rubber-band which has an upstretched ‘l’. A roll of 50 pennies of...

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Explain why tyrosine has a lower pKa than threonine.

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You work for a surveying company. Main roads WA has contracted your company to set out...

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I have been one acquainted with the night. I have walked out in rain—and back in...

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