Question: Problem 2: a) A manometer has oil (density ( 850 mathrm{~kg} / mathrm{m} 3 ) ) is attached to a tank filled with air. If

Problem 2: a) A manometer has oil (density ( 850 mathrm{~kg} / mathrm{m} 3 ) ) is attached to a tank filled with air. If the oil-level difference between the two columns is ( 45 mathrm{~cm} ) and the atmospheric pressure is ( 98 mathrm{kPa} ), determine the absolute pressure of the air in the tank b) Aluminum at ( 100^{circ} mathrm{C} ) is placed in a large, insulated tank having ( 10 mathrm{~kg} ) of water at a temperature of ( 30^{circ} mathrm{C} ). If the mass of the aluminum is ( 0.5 mathrm{~kg} ), find the final equilibrium temperature of the aluminum and water, the entropy change of the aluminum and the water, and the total entropy change of the universe because of this process. Before we work the problem, what do you think the answers ought to be? Are entropy changes going to be positive or negative? What about the entropy generated as the process takes place?

Problem 2: a) A manometer has oil (density 850kg/m3 ) is attached to a tank filled with air. If the oil-level difference between the two columns is 45cm and the atmospheric pressure is 98kPa, determine the absolute pressure of the air in the tank b) Aluminum at 100C is placed in a large, insulated tank having 10kg of water at a temperature of 30C. If the mass of the aluminum is 0.5kg, find the final equilibrium temperature of the aluminum and water, the entropy change of the aluminum and the water, and the total entropy change of the universe because of this process. Before we work the problem, what do you think the answers ought to be? Are entropy changes going to be positive or negative? What about the entropy generated as the process takes place? Problem 2: a) A manometer has oil (density 850kg/m3 ) is attached to a tank filled with air. If the oil-level difference between the two columns is 45cm and the atmospheric pressure is 98kPa, determine the absolute pressure of the air in the tank b) Aluminum at 100C is placed in a large, insulated tank having 10kg of water at a temperature of 30C. If the mass of the aluminum is 0.5kg, find the final equilibrium temperature of the aluminum and water, the entropy change of the aluminum and the water, and the total entropy change of the universe because of this process. Before we work the problem, what do you think the answers ought to be? Are entropy changes going to be positive or negative? What about the entropy generated as the process takes place

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