According to the Bohr model of hydrogen atom, the kinetic and potential energies of the electrons vary as .......... ..and... distance of electron from the nucleus. respectively. where r is the The square of the wavefunction, y}, gives us the Absorption of a given amount of energy gives rise to a larger increase in entropy the the initial temperature. Orbital energies in multi-electron atoms are mere difficult to calculate due to the additional Select the correct answers from the following multiple choice questions. Each .y...~4o‘m: correct answer carries 1.0 mark and for each wrong answer 0.25 marks will be deducted.
Probability density for 1s orbital of hydrogen atom is maximum at (a) r 1 do (in) r = 0 (c) r = 2:10 (d) r = 0.5 no The RDF for 1s orbital of hydrogen atom has maximum value at (a) r = an 0:) r i G (0) r ‘ 290 id) F = 0-5 do
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(a) 0 (13} C (M (V) M) (vii) (viii) (c) B (d) N
The numerical values of a. wavefunction for a one-electron atom at three values of r are {Mr = do) = 0.92. w(r= 2:20) = -0.13 and [Mr = San) = 0.20. Which of the following wavefunctions are consistent with this description? (3) 15 (b) 25 (c) 3.9 (Ci) 2p (e) 31.? [0 3a' which of the following orbitals of F is closer in energy to the 1s orbital of hydrogen? (a) 1 0?. (b) 25 (c) 2P (d)