Astandard schedule 40, 2-in. steel pipe (inside diameter 2.067 in., and wall thickness 0.154 in.) carrying steam is insulated with 2 in. of 85% magnesia covered in turn with 2 in. of cork.
estimate the heat loss per hour per foot of pipe if the inner surface of the pipe is at 250°f and the outer surface of the cork is at 90°f. the thermal conductivities (in btu∕hr * ft * °f) of the substances concerned are:
steel, 26.1; 85% magnesia, 0.04; cork, 0.03

Nonmetal halogen family atmoic mass 35

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)