Problem 1 (Equivalence of Alternate Forms of Fick's Law) The objective of this problem is to demonstrate the equivalence of Equation (1) and (4); obtaining Equation (2) and (3) from these requires only that one multiply or divide by MA to obtain the required molar or mass units. (a) Noting that jA+jB=JAMA+JBMB=0, show that JA=MBCJA(M). (b) Use the result in part (a) to derive Equation (1) from Equation (4). This shows that the various forms of Fick's law are equivalent