Carbon dioxide (co2) is used in industrial and research application, and is sometimes stored at very high pressure in rigid metal tanks. consider a tank with a volume of 0.8 m^3. (a) when the tank is first deliverd to a customer on a hot summer day, the pressure is measure to be 18,000 kpa at a temperature of 35 celsius. what the mass of co2 in the tank? (b) if the temperature remains constant, when enough co2 is used such that the tank pressure is reduced in half to 9,000 kpa, what is the mass of co2 in the tank?

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?