Physics

Physics, 23.07.2019 01:40, alisonlebron15

A4-l pressure cooker has an operating pressure of 175 kpa. initially, one-half of the volume is filled with liquid and the other half with vapor. if it is desired that the pressure cooker not run out of liquid water for 74 min, determine the highest rate of heat transfer allowed. the properties

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Chemistry, 27.07.2019 03:20, c1100321311

1. the pressure inside a pressure cooker is 2.0 atm. how many minutes will it take to cook 1.0 pound of potatoes in a pressure cooker if it takes 45 minutes to cook them in boiling water at standard pressure? given: volume of the pressure cooker is 4.0l, there are 0.25 gaseous moles, and e_a = 1.77 x 10^5 5 j/mol. 2. at 320°c, the half-life for the first-order decomposition of so_22cl_22 is 8.75 hrs. if the initial pressure of so_2cl_2 is 791 torr inside a 1.25 l container, how many molecules will remain after 14.5 hrs? use “e” for scientific notation.

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Engineering, 27.08.2019 21:00, sheabenitez305

A4-l pressure cooker has an operating pressure of 150 kpa. initially, one-half of the volume is filled with liquid water and the other half by water vapor. the cooker is now placed on top of a 750-w heating unit. the final mass is measured to be 0.04 kg. assuming the surroundings to be at 27°c and 100 kpa, determine how long is the pressure cooker on the heating unit.

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Engineering, 18.10.2019 20:20, lovwhydontwe

I'm heating water in a pressure cooker on my stove top. pressure cookers work by letting pressure inside the closed pot to a critical pressure p 3 bar at which point gas is released through a valve in the lid. when i put the water in, it's at 30 °c and 1 bar. the pressure cooker is filled completely with liquid with negligible head space, and has a volume v. i turn on the stove and come back a while later to find pot is only one-fourth full of liquid, and the rest is vapor how much mass escapes the pot during that time?

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Physics, 23.10.2019 21:00, bks53

Steam is leaving a 4-l pressure cooker whose operating pressure is 150 kpa. it is observed that the amount of liquid in the cooker has decreased by 0.6 l in 40 min after the steady operating conditions are established, and the cross-sectional area of the exit opening is 8 mm2. saturation conditions exist within the cooker at all times so that steam leaves the cooker as a saturated vapor at the cooker pressure. determine (a) the mass flow rate of the steam and the exit velocity, (b) the flow energies (pv) of the steam per unit mass, and (c) the rate at which energy leaves the cooker by steam. ignore the potential energy.

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