Question

12. Now apply a physical meaning to "dots" and "boxes." Suppose every dot represents a molecule with a mass of, say, 1 x 10-25 kg. And suppose every box represents a length of 1 nm (1 x 109 m). So the sets of boxes represent strings of molecules-strings of various lengths and, in many cases, various spacings between molecules. Or you could asres So you could express the density in terms of molecules/nm. Or, you could express it in terms of kg/m -a mass density (in SI units) a. Consider this string of molecules and use the above assumptions. (i) Find the average molecular density (molecules/nm) of the entire string. (ii) Find the average mass density (kg/m), of the entire string.

Answer 1