You perform a falling head test on a soil sample with 7.3 cm diameter and 18 cm long. The time for the head to fall from 65 cm to 50 cm is 193 minutes. The standpipe’s diameter is 1 cm. Determine the soil’s hydraulic conductivity in cm/sec and ft/min. What is the probable soil type?

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?