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one excited state of the sodium atom lies at 25 73986 cm1 above the ground state another lies at 50 26688 cm-1 suppose
calculate the second-order correction to the energy for the system described in problem 64 and calculate the
calculate the first-order correction to the energy of a ground-state harmonic oscillator subject to an anharmonic
instead of the perturbation being switched linearly it was switched on and off exponentially and slowly the switching
confirm that in hydrogenic atoms the spin-orbit coupling constant depends on n and l as in eqn 724 2calculate the
1 identify the terms that may arise from the ground configurations of the atoms of elements of period 2 and suggest the
1 an ion with the configuration f 2 enters an environment of octahedral symmetry what terms arise in the free ion and
a confirm that the symmetry-adapted linear combinations of p-orbitals for benzene are those set out above example 84b
1 in a hartree-fock scf calculation on the chlorine atom using 20 spatial basis functions how many virtual orbitals are
as discussed in section 11 new parameters are oten born out of the need to explain inconsistencies between experimental
a distribution function such as the maxwell-boltzmann distribution can be described in terms of moments where the nth
calculate the fraction of n2 molecules in a sample at 298 k that have speeds less than 100ms -1 by integrating the
1 if we had only a ruler and a clock as measuring devices how could we measure the density of water2 calculate the
chemistry buildings built to code require a great deal of ventilation which necessitates a delicate air-handling system
calculate the pressure in bar that would be equivalent to the attractive force between the na and cl - ions in a salt
a typical engine alternates between compression and expansion of a gas if during the compression stroke the entropy of
the vibrational partition function for an unknown diatomic molecule at 300 k is 233 find the maximum value of the
the ground state 1s1 h atom has two hyperfine states f 0 and f 1 which correspond to different relative orientations
1 according to the equipartition principle what is the overall energy in j of one mole of water at 1000 k if
as an approximate rule a particular vibrational mode in a molecule will contribute to the equipartition principle
a sample of he ions is prepared at a temperature of 298 k and a density of 20 1010 cm-3 because these are ions
a system and reservoir are in contact with each other he volumes and numbers of particles are constant for both and the
if all the states of an ensemble are equally probable then a 005 mol sample of an ideal gas at ixed energy in a 1000
an isotopically enhanced sample has ndi moles of deuterated hydrogen iodide and nhi moles of common hi at 398 k
1 find the rotational partition function for chloroacetylene gas hcccl at 500 k he rotational constant is b 0186 cm-12