If the bond energy for A2, B2, and A-B is 300, 200 and 100 kJ/mole, respectively,...

If the bond energy for A₂, B₂, and A-B is 300, 200 and 100 kJ/mole, respectively, the change in energy for the following reaction A₂+B₂=2A-B should be (in kJ):

500

300

-300

400

-400

Based on Coulomb’s law, when the K⁺ and Cl^- ions are placed 10 nm apart, their interaction energy should be (in J):

-2.31x10^-19

-2.31x10^-20

2.31x10-20

2.31x10^-19

-2.31x10^-18

Using the energy equation for the H atom, determine its energy when its principal quantum number n=∞ (in J):

2.18x10^-19

2.18x10^-18

1.09x10^-18

4.26x10^-18

If a diatomic molecule has a vibrational force constant of k=240 kg s^-2 and a reduced mass of 1.627x10^-27 kg, its vibrational frequency should be (in cm^-1):

4079

1443

5770

2040

2885

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago

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