Spreading rate of spilled liquid. Refer to the Chemical Engineering Progress (January 2005) study of the rate at which a spilled volatile liquid will spread across a surface, Exercise 2.130 (p. 125). Recall that a DuPont Corp. engineer LSPILL Time (minutes) Mass (pounds) Time (minutes) Mass (pounds) 0 6.64 22 1.86 1 6.34 24 1.60 2 6.04 26 1.37 4 5.47 28 1.17 6 4.94 30 0.98 8 4.44 35 0.60 10 3.98 40 0.34 12 3.55 45 0.17 14 3.15 50 0.06 16 2.79 55 0.02 18 2.45 60 0.00 20 2.14 Source: Based on the source J. Barry, “Estimating Rates of Spreading and Evaporation of Volatile Liquids,” Chemical Engineering Progress, Vol. 101, No. 1, January 2005 calculated the mass (in pounds) of a 50-gallon methanol spill after a period of time ranging from 0 to 60 minutes. Do the data in the table below indicate that the mass of the spill tends to diminish as time increases? If so, how much will the mass diminish each minute?