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A. Assume a coal burning power plant generates superheated steam at 1200oC.
The steam expands through a two-stage turbine and is eventually exhausted at 200oC.
Question- What is the maximum theoretical efficiency?
B. Further suppose that this plant produces 40 GJ of heat by burning 1 hour's worth of coal. If the plant is rated at 4 MW of electrical production what is the real efficiency? Recall that a Watt is a Joule per second. (Gigga, G = 109)
You are given a compound with an unknown concentration and you have five samples with known concentration of the compound. List 3 pieces of information you need to determine in order to calculate the unknown concentration spectrophotometrically.
Some HN3 would be used up in re-establishing equilibrium Some HNO2 would be formed in re-establishing equilibrium Some HNO2 would be formed, and some N2H4 would be lost More HN3 and H2O would be formed The temperature would decrease, and the forwa..
If you have a beaker of gas and all of the gas in that beaker is moved to a container half the size, the temp is maintained, what would the gas look like
what is the reaction when vo2 ions are addedto a ten fold excess of sodium sulfite in order to formvo2 ions? also why
(0.0250 moles)(5 moles of the H20 / 1 mole of copper sulfate pentahydrate)(18.01 g/mol of H2O) = 2.25 grams, on top, in order to achieve the real molarity of CuSO4 when in solution?
When 100mL of an aqueous solution containing 1.0g of caffeine is extracted with 10mL of chloroform at room temperature, .5g of caffeine is transferred to the chloroform layer. Compute the distribution coefficient of caffeine between chloroform and..
In peptides and proteins (peptides simply being smaller proteins), the amine nitrogens of amino acids are linked to the carboxyl carbons of other amino acids by peptide (aka amide) bonds formed by condensation reactions
When sodium chloride is added to the solution, no precipitate forms. when sodium sulfate is added, a precipitate forms. this precipitate is filtered of and sodium carbonate is added to the solution
Using the Nersnst Eqaution [E=E^0 + (RT/nF)In(a1/a2) ] in terms of teh partial pressures of the components (specify assumptions). Also, calculate the Gibbs Free energy of the complete rxn.
The third law of thermodynamics relates the entropy (randomness) of matter to its absolute temperature. Which of the following statements are in agreement with the third law of thermodynamics. Check all that apply. Check all that apply. At absolut..
a metal container holding xenon gas xe has a pressure of 458 torr at 20 degrees celcius. at what temperature will the
The solution's boiling temperature is 103.25 degrees celsius. What is the molar mass of this molecular compound?
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