Question posted by wisdomlover
wisdomlover from School of home study
Questions Posted by wisdomlover
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| Bounty | Status | Category | Sub-Category | Question | Due | $5.00 | Closed, closed | Chemistry | Physical Chemistry |
electron density calculated from molecular orbital wavefunctions
 The electron density is defined as  N ∫Ψ*Ψ d(all coordinates except one electron position) Where N is the number of electrons. Because of the Pauli principle, it does not matter which... |
Apr. 15, 2012 | $3.00 | Closed, closed | Chemistry | Physical Chemistry |
quantum theory(electron in 1D)
1) Calculate the position uncertainty delta X(average position) for states with high n(quantum bumbers). x^2 = integral from zero to L dx psi*(x) x^2 psi(x) - (L / 2)^2 2) How large is (delta p)^2 ?... |
Feb. 09, 2012 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
quantum theory
find the eigenvalues for: 1) operator d^3/dx^3 and eigen func. x^3 2) operator x(d/dx)+ y(d/dy) and eigen func. xy 3) operator d^2/d theta^2 and eigen func sin theta cos fsi |
Feb. 08, 2012 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
quantum theory(operators)
consider a self-adjoint operator A, along with its eigenvalue equation A fsi = fsi ai. Show that the ai are real numbers. (Hint: ai real emans ai=a*i. |
Feb. 08, 2012 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
partial molar volume
at 25 degree C, the density of a 50 percent by mass ethanol/water solution is .914g/cm^3. Given that the partial molar volume of water in the solution is 17.4cm^3/mol, what is the partial molar... |
Nov. 23, 2011 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
entropy
calculate the increase in entropy when 3.5mol of monatomic perfect gas with Cp =5/2R is heated from 250 to 700K and simultaneously expanded from 20 to 60L. Please also explain. |
Oct. 26, 2011 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
gas laws
calculate the final pressure when neon at 1 atm. is compressed reversibily and adiabatically to 75% of its initial volume. Please also explain. |
Oct. 20, 2011 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
entropy
calculate delta S for the system involving a change of state of 2mol of a diatomic perfect gas, for which Cp,m = 5/2R, is changed from 298.15K and 1.5atm to 408.15K and 7atm. Please also explain. |
Oct. 15, 2011 | $1.00 | Closed, closed | Chemistry | Physical Chemistry |
the 1st law of thermodynamic
C12H22O11 + 12 O2 = 12 CO2 + 11 H2O Asample of sucrose, C12H22O11, weighing 0.1265g is burned in a bomb calorimeter. After the reaction is over, it is found that to produce an equal temperature... |
Oct. 15, 2011 | $1.00 | Closed, closed | Physics | General Physics |
induction and inductance13
please also explain. |
May. 08, 2011 |
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