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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
Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that O atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)
A 3.5514 g of a chromium oxide was found to contain 2.4299 g of chromium and 1.1215 g oxygen. What is the empirical formula for this chromium oxide
How much A would have been extracted into ether if the orginal aqueous solution had been extracted once with a 500-mL portion of ether? What percentage of A would have been extracted by the ether?
Identify the oxidation-reduction reactions among the following.
What maximum mass of carbon dioxide is produced by the complete combustion of 10.0 kg of this fuel?
Write equation for the reaction : Mg+H2SO4(diluted) Identify the oxidizing agent and the reducing agent.
The volume of a gas sample is 200L at 740 torr. what is its volume at 760 torr? Assume that the Temperature remains constant
Solid CrF3 contains a Cr(III) ion surrounded by six F- ions in an octahedral geometry all at distances of 190 pm. However, MnF3 is in a distorted geometry with Mn-F distances of 179,191, and 209 pm (two of each).
The boiling point of propylamine, CH3CH2CH2NH3, is 48 °C while that for its isomer trimethylamine, (CH3)3N, is only 3 °C. Explain the difference on the basis of the intermolecular forces
a student is asked to calculate the amount of heat involved in changing 10 grams of liquid bromine at room temperature (22.5 C) to vapor at 59 C. To do this, one must use tables 8.1 and 8.2 for information on the specific heat, boiling points
The gas is collected over water . If 156 mL of gas is collected at 19oC and 769 mmHg total pressure, what is the mass of hydrogen collected?
Find out the concentration of this solution in a)M (molarity), b) m (molality), c) % w/w (percent by mass). If solvent =, H 2 O.
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