The general expression for the conservation of any (conserved) quantity Q can be written in the form of Equation 1.12. We have said that “dollars” are also a conserved quantity, so Equation 1.12 should apply. Substituting “$” for Q in this equation and assuming that the “ system” is your bank account:

(a) Identify specific items that correspond to "rate in" and "rate out" and "rate of accumulation" with respect to your "system" (i.e., each term should correspond to the rate at which dollars move into or out of your account).

(b) Identify one or more "driving force" effects that govern each of these rate terms, that is, the things that influence how fast the dollars go in or out. Use this to define respective "transport coefficients" relating the "driving force" and the "rate" for each term in the equation.

Transcribed Image Text:

Rate of Q Rate of Q Rate of accumulation of Q (1.12) into the system] out of the system within the system