From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copperat the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activationenergy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate thelength of time required for 50% recrystallization at room temperature, 20°C (293 K).(a) ikJ/mol(b) idays Time = 1 minPercent recrystallized = 0 %1008060135°C 119°C113°C 102°C88°C43°C4020102Time (min)(Logarithmic scale)10104Percent recrystallized

Solution : In this problem we asked to calculate rate at different temperature. Rate = 1t0.5…

Answered: (a) i kJ/mol (h) days

Engineering

Mechanical Engineering

(a) i kJ/mol (h) days

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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