A stainless steel distillation column is initially designed to separate a mixture of naphthalene and benzene at 25 barg. The column has 20 stainless steel valve trays and is 2 m in diameter and 15 m tall. Determine the purchased cost and the bare module cost for 2021 (CEPCI2021

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?