The iodine molecule can be photodissociated into iodine atoms in the gas phase with light of wavelengths shorter than about 794 nm . A 100.0 mL glass tube contains 55.1 mtorr of gaseous iodine at 16.0 ∘C.What minimum amount of light energy must be absorbed by the iodine in the tube to dissociate 14.0 % of the molecules?

Q: The photoelectric work function for magnesium is 5.90 x 10-19 J. (The work is the minimum energy…

A:

Q: An ampule of napthalene in hexane contains 5.00x10^-4 mol napthalene. The napthalene is excited with…

A: Given: 5.00 × 10-4 mol naphthalene in an ampule wavelength = 349 nm Energy emitted = 15.5 J…

Q: A laser produces 20.0 mW of red light. In 1.00 hr, the laser emits 2.29 x 1020 photons. What is the…

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Q: Assume that an electron can absorb more than one photon in the photoelectric effect. (a) How many…

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Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A: Given: Wavelength of photon = 45.5 nm Threshold energy = 8.76×10-19 J

Q: How can we find out how many nodes are present

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Q: A diode laser emits at a wavelength of 987 nm. (a) In what portion of the electromagnetic spectrum…

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A: Given : The wavelength of the photon absorbed = 65 nm And the hydrogen atom is in ground state.

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A:

Q: How fast must a 144.9−g baseball travel in order to have a de Broglie wavelength that is equal to…

A: De-Broglie equation is given as,

Q: What is the energy in kJ of a mole of photons with a wavelength of 440 nm?

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A: Solution -

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.