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A large amount of liquid isopropyl alcohol (a highly volatile liquid) is spilled in an accident. As it evaporates, isopropyl alcohol vapor is released into the atmosphere. The air is at SATP conditions. The surface area of the puddle of liquid isopropyl alcohol is 80.9m2. You happen to have a portable sensor that reads out the mol fraction of isopropyl alcohol in PPM. You measure it at two elevations: - At z=0.865m,yj=13,095 PPM - At z=0.983m,yj=7,988 PPM The two elevations are close enough together that the slope can be approximated as a simple linear slope between the two measurement locations. Estimate the mass flow rate of isopropyl alcohol vapor flowing upward into the atmosphere at this elevation in units of kg/h. 0.331 margin of error +/1.5%