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Class 11

SOLUTIONS OF ASSIGNMENT ON REDOX REACTION (UNSOLVED)

By Dr. Vikas JasrotiaSeptember 16, 2021

ASSIGNMENT ON REDOX REACTION (UNSOLVED) SOLUTIONS OF ASSIGNMENT ON REDOX REACTION (UNSOLVED) SOLUTIONS OF ASSIGNMENT ON REDOX REACTION (UNSOLVED) Ans…

Browsing: Answers Assignment Redox reaction

SOLUTIONS OF ASSIGNMENT ON REDOX REACTION (UNSOLVED)

Question 2.12: Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 Å. Calculate the threshold frequency (ν0) and work function (W0) of the metal.

Question 2.11: A 25-watt bulb emits monochromatic yellow light of wavelength of 0.57µm. Calculate the rate of emission of quanta per second.

Question 2.10: Electromagnetic radiation of wavelength 242 nm is just sufficient to ionize the sodium atom. Calculate the ionization energy of sodium in kJ mol–1.

Question 2.9: A photon of wavelength 4 × 10–7 m strikes on the metal surface, the work function of the metal is 2.13 eV. Calculate (i) the energy of the photon (eV), (ii) the kinetic energy of the emission, and (iii) the velocity of the photoelectron (1 eV= 1.6020 × 10–19 J).

Question 2.12: Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 Å. Calculate the threshold frequency (ν0) and work function (W0) of the metal.

Question 2.11: A 25-watt bulb emits monochromatic yellow light of wavelength of 0.57µm. Calculate the rate of emission of quanta per second.

Question 2.10: Electromagnetic radiation of wavelength 242 nm is just sufficient to ionize the sodium atom. Calculate the ionization energy of sodium in kJ mol–1.