Find the temperature at which the everage thermal kinetic energy is equal to the energy needed to take a hydrogen atom from its ground state `n = 3` s

Find the temperature at which the everage thermal kinetic energy is equal to the energy needed to take a hydrogen atom from its ground state `n = 3` s
by

1 Answer

Answer :

Find the temperature at which the everage thermal kinetic energy is equal to the energy ... hydrogen that hydrogen molecules dissociate into atoms
by
selected by

Related questions

The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. Which of the following is its kinetic energy in the first excit

Description : The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. Which of the following is its kinetic energy in the first excit

Last Answer : The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. Which of the following is its ... 6.8 eV C. 3.4 eV D. 1.825 eV

The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ground state hydrogen atom but at rest to p

Description : The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ground state hydrogen atom but at rest to p

Last Answer : The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ... at rest to produce a photon is given by

An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energ

Description : An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energ

Last Answer : An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding ... eV C. 12.1 eV D. 13.6 eV

Find the binding energy of an electron in the ground state of a hydrogen like atom in whose spectrum the third Balmer line is equal to 108.5 mm.

Description : Find the binding energy of an electron in the ground state of a hydrogen like atom in whose spectrum the third Balmer line is equal to 108.5 mm.

Last Answer : Find the binding energy of an electron in the ground state of a hydrogen like atom in whose spectrum the third Balmer line is equal to 108.5 mm.

An electron , in a hydrogen-like atom, is in excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy and (b) the de Broglie

Description : An electron , in a hydrogen-like atom, is in excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy and (b) the de Broglie

Last Answer : An electron , in a hydrogen-like atom, is in excited state. It has a total energy of -3.4 ... and (b) the de Broglie wavelength of the electron.

A hydrogen atom in state `n = 6` makes two successive transition and reaches the ground state in the first transition a photon of `1.13eV` is emitted

Description : A hydrogen atom in state `n = 6` makes two successive transition and reaches the ground state in the first transition a photon of `1.13eV` is emitted

Last Answer : A hydrogen atom in state `n = 6` makes two successive transition and reaches the ground state in the ... is the value of n in the intermediate state?

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be - (1) 2 (2) 6 (3) 5 (4) 3

Description : Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be - (1) 2 (2) 6 (3) 5 (4) 3

Last Answer : (2) 6 Explanation: Number of spectral lines from a state n to ground state is = n (n-1)/2 =4(4-1)/2 =12/2 =6

The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is

Description : The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is

Last Answer : The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is A. ... 10.2 eV C. 0.85 eV D. 12.75eV

Calculate the energy of hydrogen atom in the ground state given that the after Bohr orbit og hydrogen is `5xx10^(-11)m` and electronic charge is `1.6x

Description : Calculate the energy of hydrogen atom in the ground state given that the after Bohr orbit og hydrogen is `5xx10^(-11)m` and electronic charge is `1.6x

Last Answer : Calculate the energy of hydrogen atom in the ground state given that the after Bohr orbit og hydrogen is ` ... electronic charge is `1.6xx10^(-19) C`.

A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by

Description : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by

Last Answer : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` ... what kinetic energy will the electron be ejected?

The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is?

Description : The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is?

Last Answer : 5x/36

A hydrogen like atom (atomic number Z) is in a higher excited state of quantum number n. The excited atom can make a transition to the first excited s

Description : A hydrogen like atom (atomic number Z) is in a higher excited state of quantum number n. The excited atom can make a transition to the first excited s

Last Answer : A hydrogen like atom (atomic number Z) is in a higher excited state of quantum number n. The excited ... . (lonization energy of H-atom = 13.6 eV)

The ionisation potential of hydrogen atom is `13.6` volt. The energy required to remove an electron in the `n = 2` state of the hydrogen atom is

Description : The ionisation potential of hydrogen atom is `13.6` volt. The energy required to remove an electron in the `n = 2` state of the hydrogen atom is

Last Answer : The ionisation potential of hydrogen atom is `13.6` volt. The energy required to remove an electron in the `n = 2` ... . 13.6 eV C. 6.8 eV D. 3.4 eV

Consider a hydrogen-like atom whose energy in nth excited state is given by `E_(n) = (13.6 Z^(2))/(n^(2))` When this excited makes a transition from e

Description : Consider a hydrogen-like atom whose energy in nth excited state is given by `E_(n) = (13.6 Z^(2))/(n^(2))` When this excited makes a transition from e

Last Answer : Consider a hydrogen-like atom whose energy in nth excited state is given by `E_(n) = (13. ... number of atom and the intial state or excitation.

A hydrogen atom in a having a binding of `0.85eV`makes transition to a state with excited energy `10.2eV`(a) identify the quantum number n of theupper

Description : A hydrogen atom in a having a binding of `0.85eV`makes transition to a state with excited energy `10.2eV`(a) identify the quantum number n of theupper

Last Answer : A hydrogen atom in a having a binding of `0.85eV`makes transition to a state with excited ... (b) Find the wavelength of the emitted radiation

One energy difference between the states `n = 2` and `n= 3` is `"E eV"`, in hydrogen atom. The ionisation potential of `H` atom is -

Description : One energy difference between the states `n = 2` and `n= 3` is `"E eV"`, in hydrogen atom. The ionisation potential of `H` atom is -

Last Answer : One energy difference between the states `n = 2` and `n= 3` is `"E eV"`, in hydrogen atom. The ionisation potential ... B. 5.6 E C. 7.2 E D. 13.2 E

For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the: w) Lyman series x) Balmer series y) Paschen series z) Pfund series

Description : For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the: w) Lyman series x) Balmer series y) Paschen series z) Pfund series

Last Answer : ANSWER: W -- LYMAN SERIES

(a) Find the maximum wavelength `lambda_(0)` of light which can ionize a hydrogen atom in its ground (b) light of wavelength `lambda_(0)` is inclined

Description : (a) Find the maximum wavelength `lambda_(0)` of light which can ionize a hydrogen atom in its ground (b) light of wavelength `lambda_(0)` is inclined

Last Answer : (a) Find the maximum wavelength `lambda_(0)` of light which can ionize a hydrogen atom in ... find the kinetic energy of the electron coming out

Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x) Ice readily sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator

Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator 

Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

An electron in an atom jumps in such a way that its kinetic energy changes from x to `x/4`. The change in potential energy will be:

Description : An electron in an atom jumps in such a way that its kinetic energy changes from x to `x/4`. The change in potential energy will be:

Last Answer : An electron in an atom jumps in such a way that its kinetic energy changes from x to `x/4`. The change in potential ... `+(3)/(4)x` D. `-(3)/(4)x`

When the electron of a hydrogen atom jumps from the n=4 to the n=1 state , the number of all pos - sible spectral lines emitted is :-

Description : When the electron of a hydrogen atom jumps from the n=4 to the n=1 state , the number of all pos - sible spectral lines emitted is :-

Last Answer : When the electron of a hydrogen atom jumps from the n=4 to the n=1 state , the number of all pos - sible spectral ... is :- A. 15 B. 6 C. 3 D. 4

Hydrogen atom electron is excited to n = 4 state , in the spectrum of emitted radiation , number of lines in the ultravoilet and visible regions are r

Description : Hydrogen atom electron is excited to n = 4 state , in the spectrum of emitted radiation , number of lines in the ultravoilet and visible regions are r

Last Answer : Hydrogen atom electron is excited to n = 4 state , in the spectrum of emitted radiation , number of lines in the ... 1 , 3 C. 2 , 3 D. 3 , 2

A hydrogen like atom (atomic number `z`) is in a higher excited state of quantum number `n`. This excited atom can make a transition to the first exci

Description : A hydrogen like atom (atomic number `z`) is in a higher excited state of quantum number `n`. This excited atom can make a transition to the first exci

Last Answer : A hydrogen like atom (atomic number `z`) is in a higher excited state of quantum number `n`. This ... eV` respectively. Determine the value of `(n+z)`

The electrons in an atom which rotate about the nucleus possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Description : The electrons in an atom which rotate about the nucleus possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Last Answer : Rotational kinetic energy

Heat engine uses ______ energy to produce mechanical work. a. Thermal b. Fluid c. Kinetic d. Electric (Ans:a)

Description : Heat engine uses ______ energy to produce mechanical work. a. Thermal b. Fluid c. Kinetic d. Electric (Ans:a)

Last Answer : Which of the following is not an internal Combustion (IC) engine? a. Gas engine b. Wankel engine c. Jet engine d. Stirling engine (Ans:d)

The energy released at the end of digestion is in the form of: (1) electric energy (2) Kinetic energy (3) thermal energy (4) chemical energy

Description : The energy released at the end of digestion is in the form of: (1) electric energy (2) Kinetic energy (3) thermal energy (4) chemical energy

Last Answer : (4) chemical energy Explanation: Digestion of food involves both physical and chemical processes. During digestion the chemical energy in for released while the molecules of food are broken down into smaller pieces.

Energy that is produced commercially from coal is called – (1) Light energy (2) Kinetic energy (3) Thermal energy (4) Potential energy

Description : Energy that is produced commercially from coal is called – (1) Light energy (2) Kinetic energy (3) Thermal energy (4) Potential energy

Last Answer : (3) Thermal energy Explanation: Thermal enemy, but in most cases coal is used for electricity. The steel industry uses coal (or coke rather) in blast furnaces. Thermal energy is the part of ... through heating, and not been subjected to work input or output, or any other energy-changing processes.

In a nuclear explosion, the energy is released primarily in the form of __________ energy. (A) Potential (B) Thermal (C) Kinetic (D) Electrical

Description : In a nuclear explosion, the energy is released primarily in the form of __________ energy. (A) Potential (B) Thermal (C) Kinetic (D) Electrical

Last Answer : (C) Kinetic

Energy stored in flywheel in the form of 1. heat energy 2. kinetic energy 3. solar energy 4. thermal energy

Description : Energy stored in flywheel in the form of 1. heat energy 2. kinetic energy 3. solar energy 4. thermal energy

Last Answer : 2. kinetic energy

One of the key areas for ....... energy saving in existing systems is waste heat recovery. a) Potential b) Kinetic c) Thermal d) Electrical

Description : One of the key areas for ....... energy saving in existing systems is waste heat recovery. a) Potential b) Kinetic c) Thermal d) Electrical

Last Answer : Potential

What are the only two forms of energy interactions associated with a closed system?  A. Kinetic energy and heat  B. Heat transfer and work  C. Thermal energy and chemical energy  D. Latent energy and thermal energy

Description : What are the only two forms of energy interactions associated with a closed system?  A. Kinetic energy and heat  B. Heat transfer and work  C. Thermal energy and chemical energy  D. Latent energy and thermal energy

Last Answer : Heat transfer and work

Which of the following items is not a path function  (a) heat  (b) work  (c) kinetic energy  (d) vdp  (e) thermal conductivity.

Description : Which of the following items is not a path function  (a) heat  (b) work  (c) kinetic energy  (d) vdp  (e) thermal conductivity.

Last Answer : Answer : e

If energy of incident photon is greater than the rest mass energy of electron positron pair, the surplus energy is shared by the pair as, a) Potential energy b) Thermal energy c) Electronic energy d) Kinetic energy

Description : If energy of incident photon is greater than the rest mass energy of electron positron pair, the surplus energy is shared by the pair as, a) Potential energy b) Thermal energy c) Electronic energy d) Kinetic energy

Last Answer : d) Kinetic energy

Energy stored in a body as thermal or internal energy consists of one of the following. Does it consist of: w) heat in the form of radiant energy x) molecular kinetic energy only y) molecular potential energy only z) both kinetic and potential energy

Description : Energy stored in a body as thermal or internal energy consists of one of the following. Does it consist of: w) heat in the form of radiant energy x) molecular kinetic energy only y) molecular potential energy only z) both kinetic and potential energy

Last Answer : ANSWER: Z -- BOTH KINETIC AND POTENTIAL ENERGY

According to the second law of thermodynamics, energy tends to become more and more unavailable for conversion from: w) thermal to kinetic energy x) kinetic to thermal energy y) thermal to mechanical energy z) mechanical to thermal energy

Description : According to the second law of thermodynamics, energy tends to become more and more unavailable for conversion from: w) thermal to kinetic energy x) kinetic to thermal energy y) thermal to mechanical energy z) mechanical to thermal energy

Last Answer : ANSWER: Y -- THERMAL TO MECHANICAL ENERGY

Energy that is produced commercially from coal is called (1) Light energy (2) Kinetic energy (3) Thermal energy (4) Potential energy

Description : Energy that is produced commercially from coal is called (1) Light energy (2) Kinetic energy (3) Thermal energy (4) Potential energy

Last Answer : Thermal energy

How is the initial kinetic energy needed to start the engine?

Description : How is the initial kinetic energy needed to start the engine?

Last Answer : The initial kinetic energy needed to start the engine is provided by the starter motor or kick starter.

The average current due to an electron orbiting the proton in the `n^(th)` Bohr orbit of the hydrogen atom is

Description : The average current due to an electron orbiting the proton in the `n^(th)` Bohr orbit of the hydrogen atom is

Last Answer : The average current due to an electron orbiting the proton in the `n^(th)` Bohr orbit of the hydrogen atom ... `propn^3` C. `propb` D. none of these

The angular momentum J of the electron in a hydrogen atom is proportional to `n^(th)` power of r (radius of the orbit) where n is :-

Description : The angular momentum J of the electron in a hydrogen atom is proportional to `n^(th)` power of r (radius of the orbit) where n is :-

Last Answer : The angular momentum J of the electron in a hydrogen atom is proportional to `n^(th)` power of r (radius of the orbit ... B. `-1` C. `(1)/(2)` D. None

A particular hydrogen like atom with radiation of frequency `2.467 xx 10^(15)Hz` when it makes transition from `n = 3 to n = 1` ,What will be the freq

Description : A particular hydrogen like atom with radiation of frequency `2.467 xx 10^(15)Hz` when it makes transition from `n = 3 to n = 1` ,What will be the freq

Last Answer : A particular hydrogen like atom with radiation of frequency `2.467 xx 10^(15)Hz` when it makes transition from ... a transition from `n = 3 to n= 1`?

For the hydrogen atom, which series describes electron transitions to the N = 2 orbit? Is it the: w) Lyman series x) Paschen series y) Balmer series z) Pfund series

Description : For the hydrogen atom, which series describes electron transitions to the N = 2 orbit? Is it the: w) Lyman series x) Paschen series y) Balmer series z) Pfund series

Last Answer : ANSWER: Y -- BALMER SERIES

A body is moving with velocity 4 m/s , possesses 56 Joules of Kinetic Energy. The momentum of body will be equal to -Physics

Description : A body is moving with velocity 4 m/s , possesses 56 Joules of Kinetic Energy. The momentum of body will be equal to -Physics

Last Answer : (d) 28 kgms-1

A block slides down a smooth inclined plane when released from the top while another falls freely from the same point. The value of which parameter in the two cases will be identical? a.Time taken to reach the ground b.Kinetic energy at the ground c.Momentum at the ground d.Velocity while touching the ground e.Kinetic energy after one second

Description : A block slides down a smooth inclined plane when released from the top while another falls freely from the same point. The value of which parameter in the two cases will be identical? a.Time ... ground c.Momentum at the ground d.Velocity while touching the ground e.Kinetic energy after one second

Last Answer : d. Velocity while touching the ground

A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Description : A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Last Answer : (3) just before it touches the ground Explanation: When an object reaches the ground it has its maximum value of kinetic energy just before touching the ground. Since kinetic energy + potential energy ... energy of an object becomes zero (0). The kinetic energy on reaching ground becomes maximum.

A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Description : A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Last Answer : just before it touches the ground

Two hydrogen-like atoms `A` and `B` are of different masses and each atom contains equal numbers of protons and neutrons. The difference in the energi

Description : Two hydrogen-like atoms `A` and `B` are of different masses and each atom contains equal numbers of protons and neutrons. The difference in the energi

Last Answer : Two hydrogen-like atoms `A` and `B` are of different masses and each atom contains equal numbers of ... A` imparts. Identify the atom `A and B`.

In a hydrogen like ionized atom a single electron is orbiting around the stationary positive charge. If a spectral line of `lambda` equal to `4861Å` i

Description : In a hydrogen like ionized atom a single electron is orbiting around the stationary positive charge. If a spectral line of `lambda` equal to `4861Å` i

Last Answer : In a hydrogen like ionized atom a single electron is orbiting around the stationary positive charge. If a ... to `n=6` and also identify the element.

For Hydrogen atom, the allowed stationary orbits are those whose orbital angular momentum is equal to an integral multiple of h i.e., mvr = a) nh/2π b) nh x 2π c) nh / 2λ d) nh / 2πλ

Description : For Hydrogen atom, the allowed stationary orbits are those whose orbital angular momentum is equal to an integral multiple of h i.e., mvr = a) nh/2π b) nh x 2π c) nh / 2λ d) nh / 2πλ

Last Answer : a) nh/2π

If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the electron is :-

Description : If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the electron is :-

Last Answer : If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie ... `5xx10^(-9)m` D. `9.3xx10^(-12)m`

A hydrogen atom in a state of binding energy 0.85 eV makes a transition to a state of excitation energy of 10.2 eV . Find the energy and wavelength of

Description : A hydrogen atom in a state of binding energy 0.85 eV makes a transition to a state of excitation energy of 10.2 eV . Find the energy and wavelength of

Last Answer : A hydrogen atom in a state of binding energy 0.85 eV makes a transition to a state of ... . Find the energy and wavelength of photon emitted.