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1. Plot of the Fermi distribution function at two different temperatures. Calculate the Fermi timction at 6.5 eV if EF=6 .25 eV and T=300 K. Repeat for T=950 K assuming that the Fermi energy does not change. Plot the energy dependence of the electron distribution function at T=300 K and at T=950 K assuming EF=6.25 eV. 2. Numerical evaluation of the effective densities of states of Ge, Si and GaAs. Calculate the effective densities of states in the conduction and valence bands of germanium, silicon and gallium arsenide at 300 K.
If 1000 tons/day of wet sugar is fed to the evaporator, how much additional water must be removed from the outlet sugar to dry it completely, and what annual revenue can be expected if dry sugar sells for $0.15/lbm?
Determine the properties of the gas-vapour mixture using suitable models. Derive psychrometric relationships for the gas-vapour mixture and create the associated
The formation of ice during colder weather helps temper the seasonal transition to winter. This is mainly because
Draw the graph carefully. Please use one graph per country and show both the autarkyand the free trade equilibrium on each graph.
Present/display a research paper with the topic Introduction to Petroleum Engineering,giving preferences to the changes that are generated through the discipline in our world today.
A 184.6-mg sample of K2Cr2O7 is dissolved in enough water to make 500.0 mL of solution. c. A 0.1025-g sample of copper metal is dissolved in 35 mL of concentrated HNO3 to form Cu2 ions and then water is added to make a total volume of 200.0 mL. (C..
Natural gas is widely used as fuel in the process industries, so the price of natural gas is often an important variable in economic analysis. Develop a 15-year forecast of U.S. natural gas prices. Historic natural gas prices are available at www...
Calculate the percentage of solvent in the dried fabric by weight. What is the concentration of solvent in the dryer exhaust (in g/m3) if the exhaust is at 80 degrees C and 1 atm? The solvent has a molecular weight of 86.
An electron falls from the conduction band of silicon (Si) to the valence band. The band gap of Si is 1.1 eV. What is the wavelength of the photon emitted by this process? Give your answer in nm
Calculate the standard enthalpy of combustion per gram of liquid methanol and compare this answer to that for ethanol in Exercise 75.
question 1a outline the provisions of occupational safety and health act 2005 with regard to substances hazardous to
Defluorination & adhesion properties, Using ion bombardment-If Teflon is deflorinated to increase it's adhesion properties, then what would the changes in surface characteristics be?
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