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Physical Chemistry
azimuthal quantum number defines
Physical Chemistry
Five moles of an ideal gas (CV,m = 3R/2) at 240 K and 10 atm (state i) are
compressed adiabatically to 300 K and 20 atm (state f).
(a) Devise a path consisting of two steps, one of which must be an isochoric process, to return to the initial state. Indicate states i and f, and the proposed path on a PV diagram.
(b) Determine q, w, ΔU and ΔH for the proposed path
(c) Deduce if it is possible for the ideal gas to be compressed reversibly and adiabatically from state i to state f.
compressed adiabatically to 300 K and 20 atm (state f).
(a) Devise a path consisting of two steps, one of which must be an isochoric process, to return to the initial state. Indicate states i and f, and the proposed path on a PV diagram.
(b) Determine q, w, ΔU and ΔH for the proposed path
(c) Deduce if it is possible for the ideal gas to be compressed reversibly and adiabatically from state i to state f.
Physical Chemistry
Calculate the equilibrium constant for the reaction N2(g) + 3H2(g) - 2NH3(g) at 25°c given that ∆G =32.90kjmol-1.
Physical Chemistry
Calculate the potential for the half cell made up of zinc in 0.02M ZnSo4 solution at 298k ,if the Eo is 0.763v.
Physical Chemistry
A solution is prepared by adding 5g of a substance x to 18 gm water. calculate the mass percent of the solute
Physical Chemistry
Calculate q, w, ΔU and ΔH for the reversible adiabatic compression of 0.2 mole
of an ideal gas (diatomic) at 27 C from a volume 1 dm3
to a volume of 0.25
dm3
of an ideal gas (diatomic) at 27 C from a volume 1 dm3
to a volume of 0.25
dm3
Physical Chemistry
Calculate the standard emf of a cell that uses Ag/Ag+ and Al/Al3+ half-cell reactions. Write the cell reaction that occurs under standard-state conditions.
Physical Chemistry
0.715 gm of na2co3.xh2o required 20 ml of semi normal hcl solution for complete reaction .find value
Physical Chemistry
Consider the harmonic oscillator model of vibrational motion, with V = ½k(x^2).
(i) Show that ψ = sin(πx / L) is not a valid wavefunction.
(ii) For each of the wavefunctions, ψ = e^-a(x^2) and ψ = xe^-a(x^2), find the value of a, and also the value of the energy (in terms of ħ, k and m). What energy levels do each of these
energies correspond to?
(i) Show that ψ = sin(πx / L) is not a valid wavefunction.
(ii) For each of the wavefunctions, ψ = e^-a(x^2) and ψ = xe^-a(x^2), find the value of a, and also the value of the energy (in terms of ħ, k and m). What energy levels do each of these
energies correspond to?
Physical Chemistry
(a) Draw a well-labeled Bom-Haber cycle for the formation of one mole of magnesium oxide (solid) identifying all the standard energy changes involved.
