Engineering, 17.02.2020 20:49 chris7055
Carbonated beverages "go flat" / lose their carbonation over time as CO2 that is dissolved in the beverage diffuses out of the container, thereby escaping the liquid beverage. Which diffusivity (also called the diffusion coefficient, D) would you expect to be higher at, say, 25°C?
a. CO2 through aluminum (a very common metal for beverage cans).
b. CO2 through polyethylene (PE, a very common plastic, eg gallons of milk are sold in PE containers).
c. CO2 through steel (a less common beverage container these days).
Answers: 3
Engineering, 03.07.2019 15:10, theamandawhite
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
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Engineering, 04.07.2019 18:10, soreese02
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
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Carbonated beverages "go flat" / lose their carbonation over time as CO2 that is dissolved in the be...
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