Discuss the physical origins of quantum mechanical tunnelling. How does tunnelling appear in chemistry?

Q: consider a 75 w bulb and 850 w microwave oven . if the wavelength of the radiation they emitted are…

A: Solution Significant quantum effects in chemistry vary from static structure (electronic and…

Q: Employ quantum theory to assess the amount of energy that mattergains and loses.

A: Quantum theory of energy explains the nature and behavior of matter and energy on the atomic and…

Q: Describe what what is meant by the term "uncertainty principle."

A: Chemistry can be defined as the branch of science that deals with composition of substances.

Q: if n=3, what is the maximum allowed value for l?

A: In this question, value of n ( principle quantum number ) is given and you want to determine the…

Q: Give some uses of fluorescence in medical field?

A: Introduction: If a system absorbs radiant energy and then emits it partly or completely almost…

Q: what is the wavelenght of an electron accelerated by 10000 volts ?

A: The de Broglie wavelength of an electron is accelerated through a potential difference of 10,000V is…

Q: Write the steady-state symbol for the following atoms 11Na , 37Rb , 55Cs , 87Fr , 3Li

A: The ground state term symbol is generally represented as, 2S+1LJ Where, S is the total spin quantum…

Q: Differentiate between infrared radiation and microwave radiation?

A: Microwave and Infrared radiations both are the forms of electromagnetic radiation. The microwave…

Q: Why do atoms, when excited withenergy, emit light only at particular wavelengths?

A: When atoms gain energy , there is always excitation of energy. They get excited and move to higher…

Q: Can an argon atom undergo vibrational motion?

A: Argon is an inert gas. It is odorless as well as colorless gas.

Q: 5. If you take a rock that has a mass of exactly 2 pounds, and you throw it with a velocity of…

A:

Q: Four quantum nos for Argon

A:

Q: Hypothesize and diagnose interactions of light and electrons

A: Light is also known as electromagnetic radiation and it travels in a straight line. Light can do a…

Q: In what ways are microwave and ultraviolet radiation the same? In what ways are they different?

A: Electromagnetic waves, or EM waves, are waves that are produced when an electric field and a…

Q: What

A: We will write the components of spectroscopic instruments

Q: Determine the de Broglie wavelength of an average Chlorine atom traveling at 2.79x10^3 ms^-1

A: Given that : The velocity of chlorine atom = 2.79 x 103 ms-1 We have to calculate the de Broglie…

Q: Summarize the evidence that led to the introduction of quantum theory.

A: Classical mechanics deals with all type of macro objects in terms of energy, rate, etc.  But…

Q: What are natural line widths for atomic emission and absorption lines? About how broad are these…

A: Spectral lines are lines which help in identifying the atoms and molecules. These are a result of…

Q: The speed of a photon (c) depends on its wavelength (A)

A: Since we know that wavelength and speed of photons are related with each other as…

Q: Which quantum number determines the shape of an orbital? (I) schrodinger quantum number (ii)…

A: According to quantum mechanics, there are four types of quantum numbers. The electrons are filled in…

Q: How would density of states (DOS) vs energy plots behave for quantum wells, quantum wires and…

A: Solution: Density of states-(DOS)- The density of states (DOS) is the number of distinct states that…

Q: Physical Chemistry. Explain the origin of quantization of translational motion. Write an equation…

A: Life and other living beings need energy to function. The sun is the center of all life on Earth,…

Q: Give an approximate range of wavelengths for type of electromagnetic radiation and summarize the…

A: SOLUTION: Step 1: The electromagnetic waves of different frequency are called by different names…

Q: What are the components of typical spectroscopic instruments?

A:

Q: Give an approximate range of wavelengths for type of electromagnetic radiation and summarize the…

A: Ultraviolet radiation: Ultraviolet rays have an approximate wavelength range of 10-7 to 10-8 m.

Q: What is the difference between a Fermion and a Boson? Why is quantum computing the wave of the…

A: Fermions: A group of elementary particles with half integral value are called Fermions…

Q: (1)Calculate the average distance a 100 keV photon will travel in graphite.   (2) Calculate the…

A: Note: As per our company guidelines, we are supposed to answer only 1st question at a time. Kindly…

Q: Give an approximate range of wavelengths for type of electromagnetic radiation and summarize the…

A: Electromagnetic radiations are classified based on their frequency ν or their wavelength λ = c/ ν.

Q: Determine the maximum wavelength of the following molecules. a) b) Ø Br O

A: We would make use of Woodward rules to determine the maximum wavelength here.

Q: Use the de brogile relationship to determine the wavelength of an ozone (O3) molecule in the upper…

A:

Q: basic principle of absorption of radiation in the visible region

A: Answer - Absorption of radiation -  Absorption of electromagnetic radiation is how matter…

Q: Illustrate the effects of Photo-electric?

A: Photoelectric effect, phenomenon in which electrically charged particles are released from or within…

Q: What is the wavelength of a UV photon with a frequency of 3.529 x 1o45 s1? Enter your answer in…

A:

Q: Calculate the maximum frequency of an x-ray emission caused by electron travelling with 60000 eV of…

A: Given:kinetic energy of moving e- = 60000 eV to find:  Frequency of X-ray emitted , ϑ= ?we also know…

Q: The ‘fine‑structure constant’, α, plays a special role in the structure of matter; its approximate…

A: de Brgalie gives a relationship between wavelength, and momentum. It can be given as: λ=hp Where λ…

Q: A helium-neon laser emits light at 633 nm. What is the energy of a single photon from this laser?

A: 633 nm = 633 x 10-9 mh = 6.626 x 10-34Jsc = 3 x 108 m

Q: (i) Define frontier orbitals. (ii) Why are frontier orbitals important? a.

A: During any chemical reaction or the complex formation, a molecule or a metal ion interact with the…

Q: If an electron confined to a potential well of width 1.40 nm with infinite barriers on both sides…

A: Given data:

Q: The flux of solar energy reaching the Earth’s surface is approximately 7J/cm2. Assume that all of…

A: The maximum efficiency is 35%. Surface area of leaf is 10 cm2  Amount of solar energy is 7J/cm2  The…

Q: Some water waves reach the beach at a rate of one every 3.2 s, and the distance between their crests…

A: Given  T= 3.2 s λ = 2.1 m Formula  speed of wave = λT = 2.13.2  = 0.656 m s-1

Q: Give the angular momentum quantum numbers and magnetic quantum numbers when n=5 Also give the types…

A: Principal Quantum Number, n = 5

Q: True or false: 1. Tunneling is more likely to contribute to reactions involving electron transfer…

A: Quantum mechanical tunneling is the phenomenon in which particles can penetrate through the…

Q: Explain the origin of quantization of translational motion. Write an equation for the energy of a…

A: The concept of quantization of energy was originated by Planck's through his theory known as…

Q: Discuss the fundamentals of fluorescence

A:

Q: How to find the difference in energy between two level responsible for ultraviolet emission at…

A: The difference in energy between two levels (∆E) = h ν = h c/ λ where, ∆E = difference in energy…

Q: what is the lewis dot structure of an excited state nitrogen?

A: Number of electron in nitrogen (N) is 7 Electronic configuration : 1s22s22p3 . (Ground state)

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.