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oe Smith from " Emerging Technology Center" visits our Demonstration Boiler facility and says to you " I am impressed with your research programs here and you have an excellent Demonstration Boiler but when you burn coal water slurry in this boiler don't you lose a lot heat in evaporating the 40 - 50% water that you add in making coal water slurry ?". What would be your answer to this question? Calculate the lower heating value of the Brookeville Seam coal with the analysis given below with 10, 20, 30, 40, and 50% moisture contents . Comment on the percentage of the heat loss based on the gross or high heating value of the fuel in using the coal with these moisture levels.
Proximate Analysis, dry basis, wt.%Volatile matter 34.72Fixed Carbon 61.10Ash 4.18
Ultimate Analysis (wt.%, dry Ash free basis)Carbon 83.14Hydrogen 5.47Nitrogen 1.58Sulfur 0.89Oxygen 8.92
Calculate the No. of moles of KHP? (b) How many moles of NaOH will react with the KHP in dissolved water? (c) Calculate the molarity of the NaOH solution?
The half equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
Consider one mole of a monatomic ideal gas at 300 K that undergoes a free expansion from a volume of 1 m^3 to 10 m^3. a) How much does the chemical potential of each molecule in a gas change?
Calculate the amount of energy released in the formation of one mole of BaO bonds(not Lattice energy) The radius of the barium ion is 1.35 Angestrom
Li2S is pictured n the text on .553. The length of the unit cel i 5.88 x 10^2 pm. For this structure determine: the coordination numbers of Li + and S2-
when making ice cream, the temperature of the ingredients is decreased to below the freezing point of pure water by using a surrounding water bath that contains a large amount of table salt, NaCl.
Calculate the pH for a mixture of .050 M formic acid (HCO2) and .050 M hypochlorous acid (HClO)
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below? DH0 for the reaction is +624.6 kJ.
a sample of argon gas is at a pressure of 1.24 multiplied by 10^4kpa and a temperature of 24 degrees celcius in a rigid 25-L tank. how many moles of argon does the tank contain?
The standard enthalpy of formation for ammonia NH3 is -46.2kj/mol. How much heat is released/absorbed when 1 mole of N2 is reacted with three moles of H2 to produce ammonia
How much heat in Kilojoules must be removed from a glass of water that contains 100G if water to lower its temperature from 30C to 15C.
A 5.645-g sample of a mixture of Fe and Al is treated with excess HCl(aq). If 0.2122 moles of H2 are obtained, then what is the percentage by mass of Fe in the original mixture? Give your answer accurate to three significant figures.
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