List of top Polymer Science and Engineering Questions on Thermodynamics asked in GATE XE

The heat of polymerization of ethylene is 25 Kcal/mol. The amount of heat generated during the polymerization of 5.6 kg polyethylene is .............. Kcal. (Round off to the nearest integer)

PVDF was quenched in one case and slowly cooled at 10$^\circ$C/min in another case. The crystallinity of slowly cooled PVDF = 60%. The heat of fusion of the quenched PVDF = 0.54 $\Delta H_m$ (where $\Delta H_m$ = heat of fusion of slowly cooled PVDF). Heat of fusion of 100% crystalline PVDF = 100 J/g. Find crystallinity of quenched PVDF.