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A garment soaked with water is hung up to dry in a warm room at atmospheric pressure. The still air is dry and at a temperature of 40°C. The garment may be assumed to have a temperature of 25°C and a characteristic length of 1 m in the vertical direction. Estimate the drying rate per unit width of the garment.
A stream that contains a mixture of methane (25% by mol) and carbon monoxide is compressed from 1 bar, 35 to 12 bar. The compressor efficiency is 90%. Treating the mixture as an ideal gas, calculate the required work.
What time is required to heat the oil to the required temperature - determine the temperature of the sheet metal when it leaves the oil bath. Also, determine the required rate of heat removal from the oil to keep its temperature constant at 45?C.
Express the diameters in inches and use inside diameters.
The nutritional information on a cereal box shows that one serving of dry cereal has 90 calories (actually kilocalories). If one were to burn a serving of cereal, the amount of heat given off would be sufficient to raise the temperature of 1 kg of..
Calculate the final temperature and time required to reach 50 percent conversion in the batch reactor described in Example 9.3.2 if the heat of reaction is now -40 kcallmol. Do you think that this time is achievable in a large reactor system?
Large blooms of algae result from high nutrient loading in rivers and lakes, for example, as a result of runoff of fertilizers from agricultural fields.
For the following reactions:a. Specify which of the following equations represent oxidation-reduction reactions. b. Write the balanced half-reactions for the reactions you identified as redox in part a. c. Identify the species being oxidized and th..
Calculate the degree of conversion if the feed to an ammonia synthesis reactor is a mixture of N2(g), H2(g) and NH3(g) in the mole ratio 1:3:0.1 at 800 K and 100 bar. Assume that the reaction mixture behaves like an ideal gas.
If the temperature at the time of measurement is 20°C above ambient, compare the percent error of both meters when measuring a current of 5 A.
Describe the major technical areas involved in engineering a new biomaterial such as a contact lens. Are there differences with other biomaterial based products?
Nitrogen gas initially at 8.5 bar expands isentropically to 1 bar and 423.15 K (150°C). Assuming nitrogen to be an ideal gas, calculate the initial temperature and the work produced per mole of nitrogen.
Regardless of your answer in part (b), your supervisor instructs you to add 0.2 moles of normal octane per mol of solution. This new stream is flashed and the vapor and liquid streams are separated. The available information for the streams in the..
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