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A Joule-Thomson expansion refrigeration system is being considered for use in a meat-storage facility. The working fluid is to be carbon dioxide that is to be expanded from 20.0 atmospheres at 20.0°C to 1.00 atm.
The system is to have a compressor with an isentropic efficiency of 75.0%. Determine the cooling temperature and the coefficient of performance of this system.
Given that we start with 0.036M NO(g) and 0.036M O2(g) AND end with 0.014M NO2, what is the equilibrium constant for this reaction and what are the equilibrium concentrations for NO and O2?
What is the pH of a solution resulting from the addition of 11.9 mL of 0.20 M HCl to 50.0 mL of 0.12 M NH3? Assume the volumes are additive. Kb of NH3 = 1.8 10-5.
A solution is made by dissolving 716.2 g of H3PO4 to water as well as diluting to a total volume of 750 mL. Compute the pH, pOH and equilibrium concentrations of [H3PO4], [H2PO4], [HPO4 2-], and [PO4?
How many millimeters of 1 N NaOH must be added to a 500-mL solution containing 500 mg of acetic acid to increase the pH to 5
You have aqueous solutuin of HCl, NaCH3COO and AgNO3. What are the ions that are present in these aqueous solution. When you mix all of the solutions together, what reaction, if any occurs. What heat is given off when 2.5g of iron rust according to..
explain why does atp synthesis occur in the presence of rotenone an inhibitor of one the reactions in the electron
James needs a 0.600 M solution of KCL. He measures out 0.600 g of KCL and adds 1 L of water to the solid.
Write a balanced equation for the yeast using glucose to produce energy, etanol and carbon dioxide.
What is the most significant intermolecular attraction in a pure sample of CH3F
Photometric measurement for the phosphate in a 25mL aliquot showed an absorbance of 0.428. Addition of 1mL of a solution containing 0.500mg phosphate to a second 25 mL aliquot yielded an absorbance of 0.517. Calculate the mg of phosphate in each m..
Suppose that one needs 17.65mL of 0.1146M NaOH to titrate 25.00mL of acetic acid, a weak acid, to the equivalent point. Calculate [HAc]
Problem- Iodine-131 is used in the diagnosis and treatment of thyroid disease and has a half-life of 8.0 days. If a patient with thyroid disease consumes a sample of Na131 I containing 10. ?g ^131I, how long will it take for the amount of ^131I to..
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