Question

Stretch a rubber band while holding it gently to your lips. Then slowly let it relax while still in contact with your lips.
a. What happens to the temperature of the rubber band on stretching?
b. Is the stretching an exothermic or endothermic process?
c. Explain the above results in terms of intermolecular forces.
d. What is the sign of ∆S and ∆G for stretching the rubber band?
e. Give the molecular explanation for the sign of ∆S for stretching.


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  • CreatedMay 05, 2015
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