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How many wind turbines of 2MW are essential to give the same total energy as the nuclear plant of 1000MWe making 8TWh each year? Determine power of nuclear plant?
Suppose that there gas-fired plant backup in case where there is no wind evaluate amount of gas required and CO2 emissions assuming 50% efficiency.
When 0.5132g of NaNO2 is allowed to react with an excess of sulfamic acid solution, the volume of N2 (g) formed is the 176 mL. The temperature of water is 26.0 deg C and that of the gas is
Complete neutralization of a sample of antacid containing only aluminum hydroxide and magnesium hydroxide required 48.5 mL of 0.187 M HCl. The chloride salts from this neutralization were obtained b
Let the 3-MW wind turbine operating at wind speed of 15m/s. Its golobal efficiency (turbine, gearbox, and generator) is assumed to be 30%. what must be swept area and size of rotor?
What useful applications can you suggest for the effect when the super conductivity is a phenomenon found at the low temperatures where certain materials lose all resistance to an electric current?
Explain why does methyl benzoate dissolve in the concentrated sulfuric acid? Write down an equation showing the ions that are formed.
Determine how many J of heat necessary to raise the temperature of a 1.05 kg block of iron from the 25.0 C(Celsius) to 88.5 C (Celsius) where the specific heat of iron metal is 0.450J/g-K.
How many seven topping pizzas can be created which comprise at most, 2 different meat toppings? Suppose each pizza uses seven different choices for toppings.
What is the pressure (torr) of the gas sample when a flask of Argon gas is connected to the left arm of a manometer? The Hg level is 78.9cm. The right arm of the manometer is open to the atmosphere
At 39.0°C a 2.41L flask of gas was found to have a pressure of 710mmHg. The temperature was changed to 78.5°C and the pressure was changed to 1061mmHg. Determine the volume of the gas under
Suppose 1.00 L of water absorbs enough radiation to rise the temperature of the water from 20.0 C to 30.0 C. Water absorbs IR radiation with a wavelength of 2.8 micro meters.
The decomposition of H2O2 is expressed as H2O2 ---> H2O +1/2 O2; after 10 minutes, the volume of O2 formed is 8 ml and at the end of the reaction is the 36 ml. Identify the rate of the re
The rate of reaction among two atoms 'A' and 'B' is expressed as the rate = k [A][B]2. When concentration of both the reactants A & B is doubled, discuss what happens to reaction rate?
Let R be the equivaence relation defined by partition {{1}, {2,4},{3}} on set of X = {1234}. Determine list of members of R and draw the digraph of R.
Write down the thermo chemical equation for the formation reaction of CaCO3 (s). [From the standard states of the elements; determine the heat of formation value for calciu
Determine the numbers of mL (to the nearest mL) of 0.168-M KF solution should be added to 560. mL of 0.237-M HF to prepare a pH = 3.30 solution?
What is the molarity of the KMnO4 solution when a 21.40 ml volume of a KMnO4 solution was required to titrate 25.00 ml of a 0.0400 M oxalic acid solution?
Describe the direction in which the retention time would change (longer or shorter) for a substance in a GC experiment when the experiment parameters are changed as shown below:
Although the mechanism of the coupling process is not well understood, it is known that the rate appears to depend on the square of the concentration of the halide.
2 kinds of carbonyl acceptor structures in addition to benzoate esters can be used in reaction with phenyl magnesium bromide to afford triphenyl methanol. What are they?
An organic compound contains H, C, N, and O. Combustion of 0.1023g of the compound in excess the oxygen yielded 0.0991 g of H2O and 0.2766 g of CO2.
Write down the electron configurations for the following ions, and calculate which have noble-gas configurations: (a)Mn3+ (b) Se2- (c) Sc3+ (d) Ru2+ (e) Tl+ (f) Au+
An ideal gas of volume=0.1m^3 and at 400K and 1bar pressure is allowed to expand to the 0.11m^3 at constant temperature. How can calculate the increase in entropy of the gas?