Determine the number of hc=ch, monomeric units in one molecule of polyethylene with a molar
mass of 13,500 g.

_units?

polyethylene contains HC=CH units.

mass of this is 26 gram/mol

number of such units =13500/26

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: