For a solid-state transformation that obeys the Avrami equation, the parameter n has been determined to have a value of 1.5. The reaction takes 125 seconds to reach 30% completion. What is the total time (in seconds) for the transformation to reach 95% completion

The total time (in seconds) for the transformation to reach 95% completion is 516.783 secs

Explanation:

Given Data:

n=1.5

Time to reach 30% completion=125 Secs

Required:

Total Time  for the transformation to reach 95% completion=?

Solution:

Avrami Equation:

where:

k is time constant

t is the time

y is the remaining amount of reaction.

First Calculate K:

Taking "ln"on both sides

ln(0.7)=-k*(125^1.5)

k=0.000255

At 95 % completion:

Avrami Equation Can be rearranged as:

The total time (in seconds) for the transformation to reach 95% completion is 516.783 secs

answer: 500 wph.

explanation:

answer:

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