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1. In a Hartree-Fock SCF calculation on the chlorine atom using 20 (spatial) basis functions, how many virtual orbitals are determined?
2. Give an example of a restricted Hartree-Fock wavefunction and an unrestricted Hartree-Fock wavefunction for the aluminium atom.
the combustion products in an internal combustion engine undergo an expansion process from an initial volume of 0.007
argon contained in a closed rigid tank initially at a temperature of 50c pressure of 2 bar and a volume of 2m3 is
What is the temperature at the condenser outlet? Explain how you know (a single sentence should suffice). Prepare and fill in an inlet-outlet enthalpy table and calculate the required cooling rate in kW.
Find the specific enthalpy of R22 at 28 oC and a specific internal energy of 120.58 kJ/kg. Evaluate T, v, and h for water at 1.0 MPa and a specific internal energy of 2692.9 kJ/kg. Consider water at a state fixed by a pressure equal to 20 lbf/in.2 an..
Gold Brick you win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. At the time, gold is selling for $426.60 per troy ounce, and 1.0000 troy ounces equals 31.1035 g. How tall would your million-dollar cub..
A 380-liter tank contains steam, initially at 300 kPa and 400°C. A valve is opened and steam flows out of the tank at a constant rate of 0.005 kg/s. During this process, a heater keeps the temperature within the tank constant.
Design the risers to solidify last by having its volume-to-area (V/A) ratio larg compared with the main casting and design the mold and calculate the required weight that should be used to prevent the buoyancy force from lifting the upper flask.
A 25-g bullet is traveling with a velocity of 425 m/s when it impacts and becomes embedded in 2.5 kg wooden block. The block can move vertically without friction. Determine a) the velocity of the bullet and block immediately after impact,
A beam ABCD with a vertical arm CE is supported as a simple beam at A and D (see figure). A cable passes over a small pulley that is attached to the arm at E. One end of the cable is attached to the beam at point B.
refrigerant 134a is compressed at steady state from 2.4 bar 0oc to 12 bar 50oc. refrigerant enters the compressor with
To ensure smooth action of the door as it reaches the vertical closed position () = 0, it is desirable that the door be insensitive to movement in this position - Determine the spring stiffness k required for this design.
communication satellites are placed in a geosynchronous orbitthat is in a circular orbit such that they complete one
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