Question: The average grain diameter for a brass material was measured as a function of time at 650°C, which is tabulated below at two different times:

The average grain diameter for a brass material was measured as a function of time at 650°C, which is tabulated below at two different times:
The average grain diameter for a brass material was measured

(a) What was the original grain diameter?
(b) What grain diameter would you predict after 150 min at 650°C?

Time (min)Grain Diameter (mm) 30 3.9 x 102 90 6.6 x 10

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