1.A pressure cooker operates by cooking food at a higher pressure and temperature than is possible at atmospheric conditions. Steam is contained in the sealed pot, with a small vent hole in the middle of the cover, allowing steam to escape. The pressure is regulated by covering the vent hole with a small weight, which is displaced slightly by the escaping steam. Atmospheric pressure is 1 bar, the vent hole area is 7mm2, and the pressure inside should be 2.75 bar. What is the mass in kg of the small weight?
1.A pressure cooker operates by cooking food at a higher pressure and temperature than is possible at atmospheric conditions. Steam is contained in the sealed pot, with a small vent hole in the middle of the cover, allowing steam to escape. The pressure is regulated by covering the vent hole with a small weight, which is displaced slightly by the escaping steam. Atmospheric pressure is 1 bar, the vent hole area is 7mm2, and the pressure inside should be 2.75 bar. What is the mass in kg of the small weight?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1.A pressure cooker operates by cooking food at a higher pressure and temperature than is possible at
atmospheric conditions. Steam is contained in the sealed pot, with a small vent hole in the middle of the
cover, allowing steam to escape. The pressure is regulated by covering the vent hole with a small weight,
which is displaced slightly by the escaping steam. Atmospheric pressure is 1 bar, the vent hole area is
7mm2, and the pressure inside should be 2.75 bar. What is the mass in kg of the small weight?
2.5team is held in two compartments separated by a membrane. The total volume is 777 ft3, and the
volume of compartment B is 280 ft3. The specific volume of the steam in B is 9.5 ft3/lbm. The membrane
breaks and the resulting specific volume is 12.75 ft3/lkm. Determine the original specific volume in
compartment A in ft3/ka.
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