A pesticide truck spills 55 kg (121 lb) of 80% endrin on a dirt road over 85 m2 (914 ft2). The average spill depth is 4 cm (1.6 in.). The bulk density of the soil is 1800 kg/m3. How long will it take for the endrin to volatilize to a level of 1 ppb in the soil?

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.