The measured kinetic energies, KE, of electrons released from metallic B irradiated with light of frequency v were: v/ 1015 s1 KE / 10 19 J 2.0 3.0 4.0 5.0 5.3 11.9 18.5 25.2 State an equation relating KE to v. Plot a graph of KE versus v and use it to determine: (a) the value of Planck's constant, (b) the work function for Be.

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A: The ionization energy of the Potassium can be calculated as -

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Q: 9. Determine (a) the energy, in joules per photon, of radiation of frequency 7.39 X 1015 s1; |(b)…

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A: The relationship between wavelength and energy is given as:

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A:

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A:

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A:

Q: Who introduced the method of treating a photon gas ?

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Q: Consider an element that reaches its first excited state by absorption of 626.7 nm light. Determine…

A: Given, Wavelength of light absorbed λ=626.7 nm

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.