2. What is the theme of the short story?
A. Fairness triumphs every single time.
B.
All people should be treated equally.
C. If you work hard and get ahead, you will be rewarded.
D.
We cannot give up on the fight against racism in America.
i

On solidification from a melt, the polymer polyethylene forms a semi-crystalline spherulite structure. (i) sketch an individual spherulite and label the amorphous and crystalline regions. (ii) draw a schematic to show the changes in specific volume with temperature during cooling from the melt, comparing it to the theoretical extremes of fully crystalline and fully amorphous (indicate tm and tg)