Styrofoam packing peanuts are filled with air pockets. When dissolved in acetone, the air trapped in the Styrofoam will be released. Thus, when acetone has evaporated, remaining polystyrene will be much denser. a) Branched LDPE is soft and not very strong and hence has a low resistance to being cut. Therefore, branched LDPE cannot be used in this application. b)… Read more →
Month: March 2017
Application Exercise 15/03/17
a) Coal-fired plants produce SOx gases, which combine with water in rain to form sulfuric acid. These molecules of sulfuric acid form tiny droplets (aerosols), which reflect sunlight instead of absorbing sunlight, and hence reduces visibility. b) Since the average rainfall in the park is 10 times more acidic than natural rain, which is around pH 5 – 6, … Read more →