The activation energy for elastomer relaxation process using an Arrhenius-type rate equation.
Answer to Problem 85AAP
The activation energy for elastomer relaxation process using an Arrhenius-type rate equation is
Explanation of Solution
Express the first relaxation time.
Express the second relaxation time.
Express the Arrhenius-type rate equation.
For first,
For second,
Dividing the Equation (IV) and (III).
Conclusion:
Unit conversion of temperature from Celsius to Kelvin.
The average molecular mass of the butadiene mer is
The average molecular mass of the Sulphur is
Substitute 25 days for
Substitute 30 days for
Substitute
Thus, the activation energy for elastomer relaxation process using an Arrhenius-type rate equation is
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