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A glass grab sampler has a volume of 100 cm3. Calculate the time required to effect a 90 percent purge of the sampler with a flow rate of 125 cm3/min.
Find flow rate A siphon made of a 1 in-inside-diameter pipe is used to maintain a constant level in a 20 ft-deep tank
hot water flows through a pvc k.092 wmk pipe whose inner diameter is 2 cm and outer is 2.5 cm. the temperature of the
2kg of an ideal gas for which Cp=0.895 KJ/kg-k and Cv =0.706 KJ/kg-k is contained in a rigid, insulated container at 2 bar, 400K. A stirrer driven by an external motor is operated within the vessel until the pressure becomes 4bar. Determine, the fina..
A vacuum gage connected to a chamber reads 35 kPa at a location where the atmospheric pressure is 92 kPa. Determine the absolute pressure in the chamber.
a liquid food is being heated in a tubular heat exchanger. the inside pipe wall temperature is 110degc. the internal
Evaluate thermal efficiency of the cycle
Refrigerant R22 exits a heat exchanger through a 3 cm diameter tubing with a mass flow of 0.5 kg/s. The temperature and quality are -20 0C and 0.1. Determine the velocity of the refrigerant in m/s.
a rigid tank of volume v1 0.15m3 initially contains water at t1 50oc. the water is heated until t2 300oc and p2
1. air is compressed by a 30 kw compressor from p1 to p2. the air temperature is maintained constant at 25 oc
Ten moles of ethylene (T_c=9.2 degrees C, P_c= 214.2kg/m^3) are to be compressed isothermally from their initial state (P = 21.7 bar,T = 25 ºC, and V = 1000 cm3/mol) to 100 cm3/mol. Estimate the work required to perform this operation on an ideal gas..
for each pair of second-order system time domain specifications below find the corresponding region for the poles in
air in a cylinder is compressed reversibly and isothermally from 95 kpa 25 o c to 290 kpa. the initial volume is 0.162
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