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Pipe with inner and outer diameter of 50 mm and 60 mm, respectively, are used for transporting superheated vapor in a manufacturing plant. The pipes with thermal conductivity of 16 w/mk are connected together by flanges with combined thickness of 20 mm and outer diameter of 90 mm. Air condition surrounding the pipes has a temperature of 25 c and a convection heat transfere coefficient of 10 w/m^2k. If the inner surface temperature of the pipe is maintained at a constant temperature of 150c determine the temperature at The base flange and the rate of heat loss through the flange.
Which of the following is (are) formed in the reaction between propyl hexanoate and methylamine. (must select all products which are formed in this reaction)
Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.
The atmospheric sulfur dioxide concentration over a certain region is 0.12 ppm by volume. Calculate the pH of the rainwater due to this pollutant. Assume the dissolution of SO2 does not affect its pressure.
Draw and name all dienes of molecular formula C5H8. When E and Z isomers are possible, draw and name each stereoisomer.
Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
a compound is a weak acid with a pka of 7.4. you make 100 ml of a 1.0 m solution of this compound. the ph of the
The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according to the equation 3H2+N2=2NH3
A basketball is inflated to a pressure of 1.50 atm in a 20.0C garage. What is the pressure of the basketball outside where the temperature is -5.00C.
What is the value of the equilibrium constant K, for a reaction for which changeG degrees is equal to -5.20 kJ at 50 degrees C
What is the concentration of the compound in a solution whose absorbance at 219 nm is A = 0.080 with a sample pathlength of 1.00 cm
The solution to Chemistry, Are there differences between having electron-donating groups and electron-withdrawing groups
In column chromatography portion of the Friedel-Crafts acylation of ferrocene, why is ferrocene yellow, acetylferrocene orange-red, and diacetylferrocene dark. What accounts for the color differences.
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