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Saturated steam at 300°C is used to heat a counter-currently flowing stream of methanol vapor from 65° C to 260°C in an adiabatic heat exchanger. The flow rate of the methanol is 5500 standard liters per minute (at STP), and the steam condenses andleaves the heat exchanger as liquid water at 90°C.
a) Calculate the required flow rate of the entering steam in m3/min
b) Calculate the rate of heat transfer from the water to the methanol (kW)
A sample of an unknown gas effuses in 11.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.19 min. What is the molar mass of the unknown gas
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Mg(OH)2 is a sparingly soluble salt with a solubility product, Ksp, of 5.61*10^(-11). It is used to control the pH and provide nutrients in the biological (microbial) treatment of municipal wastewater streams
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The Ogallala aquifer is the largest in the United States, covering 450,000 across eight states, from South Dakota to Texas. This aquifer provides 82% of the drinking water for the people who live in this region
A buffer is initially prepared by adding 100 mLs of 0.500 M HOl to 60 mLs of 2.00 M NaOI. The mixture is brought to a final volume of 200 mL by adding water. What is the pH fo the buffer
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A 54.9 g sample of the compound X2O7 contains 33.6 g of oxygen atoms. What is the molar mass of element X
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