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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)
Compute the energy of a photon from an FM radio station at a frequency of 101.2 MHz. respond in 4 sig figs.
an unkiwn compound contians only carbon hydrogen and oxygencho. combustion of 3.50g of this compund produced 5.13g of
1. Calculate the pH after 0.0 mL of KOH has been added. 2. Calculate the pH after 20.0 mL of KOH has been added. 3. Calculate the pH after 25.0 mL of KOH has been added. 4. Calculate the pH at the equivalence point. 5. Calculate the pH after 100.0..
Calculate the value of the rate constant. Pick the choice from below which gives the correct reaction order and value of the rate constant for this reaction.
Calculate the plate height (H) for a 16 cm-long column with a stationary phase particle diameter
An experiment identical to the one you just preformed is done by another student.except the amperage is continuously increased while the sulfuric acid concentration is kept constant
hydrogen iodide hi decomposes in the gas phase to produce hydrogen h2 and iodine i2. measuring the value of the rate
A vitamin tablet contains 789 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet? Enter your answer in scientific notation.
The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, and Ka3 = 4.2 × 10-13 at 25.0 °C. What is the pH of a 2.5 M aqueous solution of phosphoric acid
Calculate the energy change in kilojoules per mole when lithium atoms lose an electron to bromine atoms to form isolated Li+ and Br- ions. [The Ei for Li(g) is 520 kJ/mol; the Eea for Br(g) is -325 kJ/mol.]
What is the formula weight of KI? What quantity of KI is present in 301 mL of a 0.30 M solution?
if a 210 mg piece of gold density 19.32 rm grm cm3 is hammered into a sheet measuring 2.5times1.0 rm ft what is the
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