Physics, 19.12.2019 02:31 theylovenylah
Consider the bohr energy expression (equation 30.13) as it applies to singly ionized helium he+ (z = 2) and an ionized atom with z=5 and only a single electron orbiting the nucleus. this expression predicts equal electron energies for these two species for certain values of the quantum number n (the quantum number is different for each species). for quantum numbers less than or equal to 9, what is the highest energy (in electron volts) for which the helium energy level is equal to the ionized atom energy level?
Answers: 2
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70āc. calculate the work (in kj) done during this process.
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The electric field inside a battery generates an electric potential difference of 12v. the plates are seperated by a distance of 0.25m. what strength of the electric field?
Answers: 3
Consider the bohr energy expression (equation 30.13) as it applies to singly ionized helium he+ (z =...
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