When a red light with a wavelength of 670 nm shines on a piece of metal, an electron is ejected. What is the energy of the photon absorbed by the electron to overcome the attractive forces? O O O O O 4.7 x 10-35 J 4.3 x 10-37 J 3.3 x 10 19 3.0 x 10-19 J 2.9 x 10-37 J

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Q: IR Spectrum بل 4000 3000 1712 2000 1600 y (cm¹) 1277 1254 1200 800

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Q: Scientific Notation. Calculate the following

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Q: Suppose 50.0 g of superheated Na(s) melts at 500 K and 1 bar pressure. Find the ΔSsys, ΔSsurr​, and…

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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.