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Easy
Question
G° vsT plotinEllingham diagramslopesdownwardforthereaction:</span
The correct answer is:
Related Questions to study
physics-
In the above radioactive decay C is stable nucleus. Then:
In the above radioactive decay C is stable nucleus. Then:
physics-General
physics-
Protons and singly ionized atoms of 
are passed in turn (which means one after the other and not at the same time) through a velocity selector and then enter a uniform magnetic field. The protons describe semicircles of radius 10 mm. The separation between the ions of 
and 
after describing semicircle is given by
Protons and singly ionized atoms of are passed in turn (which means one after the other and not at the same time) through a velocity selector and then enter a uniform magnetic field. The protons describe semicircles of radius 10 mm. The separation between the ions of and after describing semicircle is given by
physics-General
physics-
The ratio of 
to 
when is maximum is :
The ratio of to when is maximum is :
physics-General
physics-
Pertain to the statement and diagram below :
he figure given shows an energy level diagram for the hydrogen atom. Several transitions are marked as I,II,III, _. The diagram is only indicative and not to scale.
In which transition is a Balmer series photon absorbed ?
Pertain to the statement and diagram below :
he figure given shows an energy level diagram for the hydrogen atom. Several transitions are marked as I,II,III, _. The diagram is only indicative and not to scale.
In which transition is a Balmer series photon absorbed ?
physics-General
physics-
When an electron accelerated by potential difference U is bombarded on a specific metal, the emitted X-ray spectrum obtained is shown in adjoining graph. If the potential difference is reduced to U/3, the correct spectrum is
When an electron accelerated by potential difference U is bombarded on a specific metal, the emitted X-ray spectrum obtained is shown in adjoining graph. If the potential difference is reduced to U/3, the correct spectrum is
physics-General
physics-
In a historical experiment to determine Planck’s constant, a metal surface was irradiated with light of different wavelengths. The emitted photoelectron energies were measured by applying a stopping potential. The relevant data for the wavelength (
) of incident light and the corresponding stopping potential (
) are given below:
Given that 
, Planck’s constant (in units of J s) found from such an experiment is
In a historical experiment to determine Planck’s constant, a metal surface was irradiated with light of different wavelengths. The emitted photoelectron energies were measured by applying a stopping potential. The relevant data for the wavelength () of incident light and the corresponding stopping potential ( ) are given below:
Given that , Planck’s constant (in units of J s) found from such an experiment is
physics-General
physics-
The graph between 1/
and stopping potential (V) of three metals having work functions 
and 
in an experiment of photo–electric effect is plotted as shown in the figure. Which of the following statement(s) is/are correct ? [Here is the wavelength of the incident ray].
The graph between 1/ and stopping potential (V) of three metals having work functions and in an experiment of photo–electric effect is plotted as shown in the figure. Which of the following statement(s) is/are correct ? [Here is the wavelength of the incident ray].
physics-General
physics-
The graph is showing the photocurrent with the applied voltage of a photoelectric effect experiment. Then
The graph is showing the photocurrent with the applied voltage of a photoelectric effect experiment. Then
physics-General
physics-
The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?
The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?
physics-General
physics-
The figure shows an energy level diagram for the hydrogen atom. Several transitions are marked as I,II,III, _______. The diagram is only indicative and not to scale.
In which transition is a Balmer series photon absorbed ?
The figure shows an energy level diagram for the hydrogen atom. Several transitions are marked as I,II,III, _______. The diagram is only indicative and not to scale.
In which transition is a Balmer series photon absorbed ?
physics-General
physics-
If min is minimum wavelength produced in X-ray tube and k
is the wavelength of k line. As the operating tube voltage is increased.
If min is minimum wavelength produced in X-ray tube and k is the wavelength of k line. As the operating tube voltage is increased.
physics-General
physics-
Given curve shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes A and B. The dark curve represents the relation for the tube A in which the potential difference between the target and the filament is 
and the atomic number of the target material is 
. Similarly dotted curve is for tube B. These quantities are 
and 
for the
Given curve shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes A and B. The dark curve represents the relation for the tube A in which the potential difference between the target and the filament is and the atomic number of the target material is . Similarly dotted curve is for tube B. These quantities are and for the
physics-General
physics-
The figure shows surface XY separating two transparent media, medium–1 and medium–2. The lines ab and cd represent wavefronts of a light wave travelling in medium–1 and incident on XY. The lines ef and gh represent wavefronts of the light wave in medium–2 after refraction.
Light travels as a
The figure shows surface XY separating two transparent media, medium–1 and medium–2. The lines ab and cd represent wavefronts of a light wave travelling in medium–1 and incident on XY. The lines ef and gh represent wavefronts of the light wave in medium–2 after refraction.
Light travels as a
physics-General
physics-
A parallel beam of light of wavelength is incident on a plane mirror at an angle 
as shown in the figure. With maximum intensity at point P, which of the following relation is correct.
A parallel beam of light of wavelength is incident on a plane mirror at an angle as shown in the figure. With maximum intensity at point P, which of the following relation is correct.
physics-General
physics-
Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is , a rav, incident at an angle q, on the face AB would get transmitted through the face AC of the prism provided
Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is , a rav, incident at an angle q, on the face AB would get transmitted through the face AC of the prism provided
physics-General
