Some water waves reach the beach at a rate of one every 3.2 s, and the distance between their crests is 2.1 m. Calculate the speed of these waves.

Q: It requires a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV…

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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: Which statement correctly compares what occurs when molecules absorb photons in the microwave region…

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Q: It takes  839./kJmol  to break a carbon-carbon triple bond. Calculate the maximum wavelength of…

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Q: Using the equation and the value of the speed of light constant identified in the previous parts,…

A: Solution -

Q: 5. Why is the wave of a moving car not detectable to the naked eye?

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

A: A wave is always characterized either by its wavelength or frequency. Hence depending upon the…

Q: How would you expect the diffraction pattern of photons and electrons to change if you increased the…

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Q: The speed of light is _______?           equals frequency times wavelength     is the fastest…

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

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Q: Four quantum nos for Argon

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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: at is the de Broglie wavelength of a 133-g baseball traveling

A: De-broglie wavelength (L) = h/mv Where, h= Planck's constant  m = mass v = Velocity  Now, L = 6.626…

Q: Calculate the maximum wavelength

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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: Define the term Frequency Factor?

A: Frequency Factor can be defined as follows,

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: Chemistry What is the total energy for one mole of photons that possesses a wavelength of 420 nm?

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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: At what speed must an electron travel to have a wavelength of 0.100Å?

A: By help of De - broglie equation, we can calculate the speed of electron. The formula is - ^ = h/mv…

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: It takes 338. kJ/mol to break an carbon-chlorine single bond. Calculate the maximum wavelength of…

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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…

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Q: A beam of photons is incident on the surface of a metal whose threshold frequency is vo. The energy…

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Q: The energy of light photons varies with wavelength. Calculate the energy per mole of photons for…

A: The energy of light photons is calculated using the below formula.

Q: takes  155./kJmol  to break a fluorine-fluorine single bond. Calculate the maximum wavelength of…

A:

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

A:

Q: Rank the following molecules from shortest wavelength to longest wavelength 1.)…

A: These all are alkenes so as the conjugation or Resonance increases stability of molecule will…

Q: Rearrange the Rydberg equation algebraically to make new expression for n2 in terms of n1 and…

A: Rydberg equation is given.

Q: wavelength

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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: It takes 463. kJ/mol to break an oxygen-hydrogen single bond. Calculate the maximum wavelength of…

A: Given: The amount of energy required to break an oxygen-hydrogen single bond = 463 kJ/mol We have to…

Q: .What is the amplitude of a wave? A.the distance between two crest points of a wave B.the number of…

A: We know that, Amplitude : Amplitude is the  maximum displacement of the wave form its mean position.…

Q: Calculate the speed of an electron with a wavelength of 820 nm

A: De-Broglie wavelength: It states that any particle of matter that has linear momentum is also a…

Q: Assuming that sunlight produces 3.066x1022 UV Photons/m2s and that the skin absorbs one-half of…

A: Energy from sun comes in the form of bundles of energy. These bundles of energy are called photons.…

Q: The de Broglie wavelength of a ________ will have the shortest wavelength when traveling at 30 cm/s

A: According to the de Broglie wavelength λ=hp λ=wavelength h = planks constant p = momentum   we know…

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: It takes 463. kJ/mol to break an oxygen-hydrogen single bond. Calculate the maximum wavelength of…

A: we know the expression for the energy is  => E= hc / λ  where, E is the Energy of one photon, h…

Q: Suppose a certain atom has two available states that are separated in energy by 1.97 eV. Given a…

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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: A beach slopes 8.7 centimeters per meter.  Waves are breaking in a surf zone that is 31 m offshore,…

A:

Q: It takes  151./kJmol  to break an iodine-iodine single bond. Calculate the maximum wavelength of…

A: Given: Amount of energy required to break I-I bond = 151 KJ/mol = 151000 J/mol.  The amount of…

Q: Radio wave radiation has wavelengths from 10 to 1000 m, whereas the wavelength region for ultraviole…

A: The given information is, Radiowave radiation has wavelengths from 10 to 1000 m, whereas the…

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

A: Energy is a notable property of a system and it is conserved in the system. Notably, a form of…

Q: At what speed must an electron travel to have a wavelength of 10.0 pm?

A: De Broglie's equation for wavelength can be expressed as,                           Where,  λ is…

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.