You can choose from four different materials to make the handrails that run up the stairs and around the playhouse: steel, aluminum, solid plastic, or pine wood. 2. Would you want to minimize or maximize the heat transfer to and from the handrails? Explain your reasoning.

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.