Find the probability distribution for the kinetic energy of an atom.

Q: What is happening at the particle level when energy is being transferred between two objects?

A: Heat is flow frommhight temperature to low temperature

Q: Compare the dual nature of light

A: LIGHT HAVE A DUAL NATURE.

Q: Explain how the motion of an electron is different from themotion of a baseball. What is a…

A: ANSWER IS

Q: a gas absorbs a photon of 355 nm and emits at two wavelengths . if one of the emission is at 680 nm…

A: According to conservation law of energy, the emitted energy is equal to the absorbed…

Q: Identify the different forms of energy that constitute the total energy of a macroscopic amount of…

A: Kinetic energy , Internal energy and potential energy are the different forms of energy that…

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: Define the term speed of light?

A: The term speed of light has to be defined.

Q: What is the Uncertainty Principle?

A: The uncertainity principle has to be defined.

Q: Both blue and green light eject electrons from the surface of potassium. In which case do the…

A: When a metal is irradiated with radiation of certain frequencies, there occurs the ejection of…

Q: How can bohr's model be used to calculate the energies in different state?

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. In an atom,…

Q: What is the difference between the excitation and emission spectrum?

A: The peaks of emission spectrum are lower than excitation peak.

Q: What is energy? Explain the difference between kinetic energy andpotential energy.

A: Energy in science is the capacity to work.  Energy can neither be created nor be destroyed but can…

Q: Which characteristic is given by the angular momentum quantum number?

A: By solving the Schrödinger equation (HΨ = EΨ), we obtain a set of mathematical equations, called…

Q: Four quantum nos for Argon

A:

Q: Determine the temperature of the surface of the sun if the hydrogen atoms move with an average speed…

A: Given, average speed of hydrogen = Vav = 1.2 × 104 m/s. Molar mass of hydrogen (M) = 2 g/mol…

Q: The Brownian Motion was discovered by A) Robert Brown B) Mandel Brown C) Isaac Newton D) John Brown

A:

Q: b): If you want to stop a fast-moving electron then what happen?

A: Electron is negatively charged particles that revolves around the nucleus in a fixed orbit.

Q: Consider a blue light with a wave of 448.1 nm. What is the energy of one photon

A: E = 4.43* 10-19 J

Q: What is an energy level? Explain the difference between ground state and excited state.

A: To define : Energy level, ground state and excited state.

Q: For the particle in a box, in the first excited state, only one of the following answers could be…

A:

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: A photon has a wavelength of 745 nm. Calculate the energy of the photon in joules. Enter your answer…

A: The relation to determining the energy of a photon for electromagnetic radiation is given by,…

Q: How fast must a 139.3−g baseball travel in order to have a de Broglie wavelength that is equal to…

A: de Broglie's wavelength is given by the formula  λ = hmv λ = wavelength h = Planks constant =…

Q: Frequencyand minimum man Series b) Balmer series Determine the maxi mum Frequency in a)Lym c) Brac…

A:

Q: Compare the momentum of a photon with a wavelength of 9.7´10-11 m to that of a 142 g baseball with a…

A:

Q: An orange emission line is observed at 656.3nm in the hydrogen emission spectrum. Determine the…

A: Given,Wavelength (lambda) = 656.3nmFrom the orange colour of the emitted proton, the final energy…

Q: An electron is confined to a one-dimensional box. The wavelength of the radiation requi red to…

A: Given, An electron is confined to a one-dimensional box. The wavelength of the radiation required to…

Q: How fast must a 145.9−g baseball travel in order to have a de Broglie wavelength that is equal to…

A:

Q: A wave that requires a medium in order to travel is an Transverse Wave. O True O False

A: Following is the definition of Transverse wave and so the correct answer as follows.

Q: Two identical gas particles (i.e. same mass), have different de Broglie wavelengths; gas particle A…

A: De - Broglie's equation is,    λ =  h / mv Where,  λ  = De-Broglie wavelength  h = plancks constant…

Q: Calculate the speed of a comet if it is rotation about the Sun in circular orbit with radius…

A:

Q: What must be the velocity, in meters per second, of a beam of electrons if they are to display a de…

A: De Broglie gave a quantitative meaning to his idea by proposing an equation which relates the wave…

Q: The type of universe that will keep expanding forever is   a. an open universe.   b. a closed…

A: Interpretation -  To tell about the type of universe that will keep expanding forever is -…

Q: Be sure to answer all parts. Calculate the difference in energy (in joules) between a photon withλ…

A: GivenWavelength of 1st photon = 697nmWavelength of 2nd photon = 347 nm

Q: Here is oh of the probability of an atom moving with a particular speed, for a sample of neon gas at…

A: We can answer this question by just evaluating the graph. Most likely speed means the speed at which…

Q: Discuss the physical origins of quantum mechanical tunnelling. How does tunnelling appear in…

A: According to Born interpretation, the probability density of a particle is equal to the square of…

Q: Here is a graph of the probability of an atom moving with a particular speed, for a sample of neon…

A: The peak of the graph is obtained in middle of 300 and 350 m/s. It shall be considered as the most…

Q: A light sample containing one mole of photons emits an energy of 1.65kj/mol. Find the frequency of…

A: Energy of a photon is given by: where h is the Plank’s constant and v is the frequency of 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: if n= 5, the highest value of l is ?

A: Interpretation- To determine the highest value of l when n= 5    Concept-  This question is based on…

Q: Be sure to answer all parts How fast must a 143.9−g baseball travel in order to have a de Broglie…

A: Given data,  Mass of baseball = 143.9 g  de Broglie wavelength = 75.0 pm

Q: Which happens when an atom in an excited state returns to the ground state

A: Given : Electron is an excited state and returns to the 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.