Question: Suppose we use a polymer in a temperature range that crosses from below to above its glass transition temperature. a. Does the viscosity increase, decrease,

Suppose we use a polymer in a temperature range that crosses

Suppose we use a polymer in a temperature range that crosses from below to above its glass transition temperature. a. Does the viscosity increase, decrease, or remain the same? Explain. b. Does the coefficient of thermal expansion increase, decrease, or remain the same? Explain

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