Consider the diagram, shown below, representing a six carbon atom cyclic benzene molecule with six pi bonds. The length of the molecule is its circumference which is just the number of bonds times the length of each bond. The length of each carbon bond is 0.12 nm. A photon strikes the bezene ring and excites an electron from the n = 1 energy level to n = 2. What was the energy of this photon? H H C H C H C 8.7 eV 2.9 eV 11.6 eV 1.45 eV H H

Q: How many photons with a wavelength of 877 nm are needed to melt 473 g of ice? The enthalpy of fusion…

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Q: wavelength, and energy per photon. For example, select "1" in the second column for the type of…

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Q: A certain microwave oven delivers 750 watts (J/s) of power to a coffee cup containing 35.1 g of…

A: Time taken and energy of photon is calculated for given

Q: Every object gets its color by reflecting a certain portion of incident light. The color is…

A: Given: The frequency of the light is 7.230×1014 s-1. The energy of the photon is calculated by the…

Q: In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by…

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Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: E…

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Q: Visible light Light is an electromagnetic wave and it has a place on the electromagnetic spectrum…

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Q: Water (c = 4.184 J/g×oC) is exposed to infrared radiation of wavelength 2.8 × 10−4 cm.  Assume that…

A: Given: Wavelength= 2.8 × 10−4 cm Mass of water=  2.0 g  Temperature= 2.0 K

Q: Determine the magnitude (in J) of the splitting of the different levels of the 3d' configuration.…

A: ANSWER : Magnitude of splitting = hcA~   =  2.19 x 10-7 . hcRWhere h = plank's constant =  6.62 x…

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

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Q: A local fm station broadcasts at a frequency of 702 kHz. Calculate the energy of the frequency at…

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Q: A container with 0.2450.245 L of water is placed in a microwave and radiated with electromagnetic…

A: Since the energy required for increasing the temperature of water by 69.9 °C is given by  Q = mCpΔT…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule:…

A: As we can see from diagram-  Ground state = A

Q: Suppose that the microwave radiation has a wavelength of 12.4 cm . How many photons are required to…

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Q: The energy of the electron in the lowest level of the hydrogen atom (n=1) is -2.179×10-18 J. What is…

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Q: m, how long does it take, and how many photons mi

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Q: The electron microscope uses the wave property of electrons to observe very small objects. A moving…

A: energy possesses by particle due to its motion is known as its kinetic energy.

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.