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Water contained in a piston-cylinder assembly undergoes two process in series from an initial state where the pressure is 10 bar and the temperature is 40°C. at first, the water is cooled as it is compressed at a constant volume to 150°C
a) Sketch both processes on T-V and P-V diagramb) For the overall process determine the work in kJ/kgc) For the overall process detrermine the heat transfer in kJ/kg
In the acid-base reaction between Sr(OH)2 and HNO3, 0.75 L of 0.85 M Sr(NO3)2 is formed upon the reaction of 0.515 L of HNO3 solution and excess Sr(OH)2.
This time took a one-hour break after adding the acetic anhydride but before adding the sodium acetate solution. The student obtained no product. Explain, with chemical equations and/or formulas, what went wrong.?
Energy level of electrons in atoms - The 3s level in hydrogen has a lower energy than the3d level in hydrogen.
If you used 8,400 kilojoules you expend in energy in one day to heat 49,000 grams of water at 18 degrees celcius, What would be the rise in temp?, and What would be the new temp of the water?
What causes the colors of these complexes? How do these colors relate to the expected positions of these ligands in the spectrochemical series?
Calculate the theoretical yield of iron in the reaction of 254 g of iron (III) oxide with 25.0 g of carbon, according to the equation 2Fe2O3(s) + 3C(s)> 4Fe(s) +3CO2(g)
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
You are going to a birthday party and you want to give the children balloons filled with He gas. How many balloons can you fill to a volume of 2 liters if the internal gas pressure of the tank
How many milliliters of 0.105 M HCl are needed to titrate 50.0 mL of a solution that contains 1.25 g of NaOH per liter?
What is the boiling point of a 0.800 molal solution of sugar in water? Kb = 0.512C/m for water. Sugar does not dissociate in solution and pure water boils at 100C.
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C,the volume of the gas is 361 mL. To what temperature must the gas be heated to occupy a volume of 492 mL.
The radius of a xenon atom is 1.3\times 10^-8 cm. A 100mL flask is filled with Xe at a pressure of 1.5atm and a temperature of 254K
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