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A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element.
(a) How much heat must be supplied to the water to bring it to a boil?
(b) How much heat is necessary to boil all the water away?
What is the minimum time required to boil all the water away?
Wpump = 1500 kJ/h = 0.42 kW Qboil = 2.59 x 106 kJ/h = 718.7 kW Wturb = -227,300 kJ/h = -63.1 kW Qcond = -2.36 x 106 kJ/h = -656 kW What is the efficiency of the engine? How should we define it?
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Pure 2-methylpentane is held in a closed container at 150 degrees F. Both gas and liquid are present. What is the pressure in the container?
Calculate the mass percentage of Na2SO4 in a slution containing 10.6 g Na2SO4 in 483 g water. b) An ore contaings 2.86 g of silver per ton of ore. What is the concentration of silver in ppm
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