Which of the following statements describe phosphorescence?

Q: ow does fluorescence work in bulk semiconductors?

A: The term bulk semiconductor refers to the semiconductors which have large preservation of atoms and…

Q: What is the significance of whether the fluorescent substance in fluorescent tubes has a short or…

A: The major difference between fluorescence and phosphorescence is the difference in the timing of…

Q: 2. Molecules absorb IR radiation consistent with vibrational energy and rotational energy. Which of…

A: Both vibrational and rotational energy can be present in molecules in the condensed phases, but the…

Q: енз СН2 Delectrophilic ло + HCI - ophilic ath + он + дона он в севе о CH3 OH

A:

Q: Give the complete electronic configuration for Mn2* and Vt.

A: Mn2+ = The electronic configuration of the given ion is, 1s2 2s2 2p6 3s2 3p6 3d5 4s0

Q: Explain how planes of lattice points are labelled.

A: INTRODUCTION: Lattice point is defined as position in the unit cell where the probability of finding…

Q: Proton 1 moves with a speed v from theeast coast to the west coast in the continental United States;…

A: (a) As the proton 1 is moving perpendicular (east cost to west cost) to the magnetic field direction…

Q: Explain the term electronic cloud.

A: SOLUTION: Step 1: An electron cloud is ​the region of negative charge surrounding an atomic nucleus…

Q: True or false? A. Phosphorescence occurs at higher energy then fluorescence. B. Fluorescence occurs…

A: An immediate emission of light radiation absorbed by the atoms or molecules is known as…

Q: Part 1 of 2 A molecular vibration absorbs radiation of wavelength 219. um. What frequency…

A:

Q: a) H20

A:

Q: When comparing the first ionization energies of elements within the same period, it is noted that…

A: Answer are as follows:

Q: Explain, based on the equations of Beer's Law and its equivalent for fluorescence, why increasing…

A: The objective of this question is to show the increasing light intensity is more useful for…

Q: What processes lead to fluorescence and phosphorescence? Which comes athigher energy? Which is…

A: Introduction- The branch of chemistry that deals with the study of Photochemical reactions is called…

Q: Mention various sources of lattice vibration. what do they te

A: Given Mention various sources of lattice vibration.

Q: Complete the balanced dissociation equation for the compound below in aqueous solution. If the…

A: NiS is a compound which is named as Nickel Sulphide and It is insoluble in water.

Q: Provide brief definitions of fluorescence and phosphorescence, with aid of a Jablonski diagram.

A: Photochemistry via branch of chemistry that deals with study of interaction of radiations with…

Q: 2 students make solutions of CuCl2.2H2O using 25-mL volumetric flasks. student A weighs out 2.489g…

A: Given, volume of solution prepared = 25 mL            mass of CuCl2.2H2O weighed by student A =…

Q: 500 ml of 0.1019 M NaOH solution is prepared It is immediately forgotten with the cap open and…

A: NaOH reacts with carbon dioxide as: 2NaOH+CO2→Na2CO3+H2O

Q: How is the behavior in general regarding the absorption and emission spectra of fluorescence and…

A: Fluorescence:-It is an important physical phenomenon in which light is absorbed at one wavelength,…

Q: Use a Jablonski diagram or potential energy curves to show the theoretical difference between…

A: Diagram that illustrates the electronic states of a molecule and the transitions between them is…

Q: IAH and IGH are not the answer.

A: We have to carry out the following transformation. The given options are

Q: Provide brief definitions of fluorescence and phosphorescence, with aid of a Jablonski diagram

A:

Q: Discuss the differences between fluorescence and phosphorescence. Draw the jablonski energy diagram.…

A: De activation of excited states by non radiative decay or radiative decay. Non radiation decay =VC…

Q: SCIENTIFIC QUESTION: Why are compounds composed of integer ratios of elements?

A:

Q: Analyze both structures of silica gel and alumina and discuss whether these stationary phases are…

A: We have to analyse both the structure of alumina and silica gel. Then, we have to tell whether these…

Q: Discuss the fundamentals of fluorescence

A:

Q: What is umplung? Provide example.

A: Umpolung : Reversal of polarity. For example acetaldehyde is having electrophilic carbon.…

Q: Using the Maxwell's relationships, we derived the following equation, ), ="(#),-P What is () for a…

A: The given Maxwell relation is,            ∂U∂VT =T ∂P∂TV  - P     → (1) The Vander Waals equation…

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.