Calculate the rate (kg/day) at which permanganate must be added to a pump-and-treat system, where groundwater containing naphthalene (20 mg/L), phenanthrene (8 mg/L), and pyrene (0.2 mg/L) is pumped at 50 gpm and reinjected into injection well at the same rate after treatment in a reactor with sufficient residence time to completely mineralize the pollutants

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature