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Two kilograms of steam contained in a horizontal frictionless piston as well as cylinder initially at 250C and 4.81m3 are cooled isobarically until the volume decreases by 19.5%. Presume that heat is transferred at 190C.
a) Find out the work heat as well as entroppy generation for the process.
b) Repeat part a Presume that steam is an ideal gas with a Cp=43 J/mol*K.
If the volume of the cylinder is 4500 ml and the pressure of the N2 in it is 3.3 atm. (temperature is 25ºC). How many moles of nitrogen molecules are in the cylinder
What is the maximum amount (in grams) of sulfur dioxide that can be produced by the reaction of 1760 g of dihydrogen sulfide with 4890 g of oxygen according to the balanced equation below
A 100.0 mL sample of cold water at 21.3 C was added to a 75.0 mL sample of hot water at 55.1 C. Calculate the temperature of the warm water mixture.
Gas A2 reacts with gas B2 to form gas AB at a constant temperature. The bond energy of AB is much greater than that of either reactant. What can be said about the sign of ΔH, ΔSsurr, and ΔS. Explain how potential energy changes for the process.
In order to analyze a commercial hydrogen peroxide solution by the procedure described in this experiment, you must first dilute the commercial peroxide solution with distilled water.
What mimimum hydronium ion concentration (M) would be needed to prevent precipitation of cupric hydroxide (Cu(OH)2 Cu2+ + 2OH- , Ksp = 2.2 x 10-20) from a solution containing 0.010 M Cu2+ ion?
A piston-cylinder device contains a saturated mixture of steam and water having a total mass of 0.5 kg at a pressure of 160 kPa and an initial volume of 100 liters
How many moles of copper atoms were lost? ii. The Faraday constant. iii. The charge of one electron. iv. The mass of one electron.
Using the Clausius-Clapeyron Equation, estimate the melting temperature of ice below an adult wearing ice skates? How might this help someone skate? Some useful data: vL = 1.00 × 10?3 m3/kg hSL = 333.4 kJ/kg.
Explain what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00 mL of 0.274 M HNO3 (to two d.p.)
What is the mass in grams of this precipitate. What is the concentration of the Cl- ions in the final solution
what is the photoelectric effect? what can you conclude about the nature electrons in an atom from this phenomenon?
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