A river with a seasonal low flow of 50,000 L/min has a water quality standard of 5 mg/L for TSS. Diffuse agricultural runoff contributes xx0 kg of TSS each day. The margin of safety is set at x0 kg/day for TSS. If the wasteload allocations for a wastewater treatment plant is based on a flow of 4000 L/min, would a typical point discharge (in mg/L) violate the TMDL for TSS?

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

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.