This page discusses the impact of chemistry on clothing materials, highlighting the contributions of chemist Stephanie Kwolek in developing Kevlar for body armor. It contrasts natural fibers like cott...This page discusses the impact of chemistry on clothing materials, highlighting the contributions of chemist Stephanie Kwolek in developing Kevlar for body armor. It contrasts natural fibers like cotton and silk with synthetic polymers such as nylon, emphasizing their benefits like reduced weight and durability. Additionally, it notes the role of chemists in advancing electronics and superconductors, which influence modern materials and technology.
This page discusses the global sourcing and price control of natural diamonds, highlighting the rise of synthetic diamonds made from carbon for industrial use. It also covers thermodynamic concepts, s...This page discusses the global sourcing and price control of natural diamonds, highlighting the rise of synthetic diamonds made from carbon for industrial use. It also covers thermodynamic concepts, specifically the standard heat of reaction (\(\Delta H^\text{o}\)), which can be calculated using Hess's law by subtracting the total heats of formation of reactants from products, helping to identify the exothermic or endothermic nature of reactions.
