Archives

What are the factors affecting the product of electrolysis?

Products of electrolysis mostly depend on the redox potentials of the ions present in the electrolyte. The products of electrolysis for the same... View Article

What is electrolysis reactions in aqueous solutions?

Electrolysis reactions in aqueous solutions involves one of the redox reactions- At Cathode: Reduction of i) cations to neutral atom and ii)... View Article

Define what is electrolysis and the process of electrolysis

Electrolysis is the breaking of chemical bonds in compounds to produce elemental substances. The process involves passing electric current at... View Article

A diatomic molecule is dissociated with a radiation of 3000λ. if, the bond dissociation energy of the molecule is 300kj/mol, calculate the kinetic energy of the atoms

Energy of the radiation one photon = E = hν = = 6.623 ×10-19J Bond dissociation of one mole = 300kJ/mol Bond dissociation of one... View Article

A sodium incandescent bulb emits 589 nm wavelength light at 60watts. calculate the number of photons emitted by the bulb.

Energy of one photon = E = hν = Energy released by the bulb = 60watt = 60J/s Number of photons = = 1.78×1020/s... View Article

Calculate the energy in corresponding to light of wavelength 45nm. Options a) 6.67 ×1015 b) 6.67 ×1011 c) 4.42 × 10-15 d) 4.42×10-18

Answer: λ = 45 nm = 45 x 10-9 m We need to calculate the energy for the given wavelength E = hc/λ----------(i) where h = Planck’s... View Article

How did plank explained the black body radiation?

Based on Max Plank's postulates of electromagnetic radiation, Plank explained the black body radiations. ✔ Matter can either absorb or release... View Article

What are the postulates of max plank?

Max Plank's postulates of electromagnetic radiation are the following. i)Radiation is non-continuous and made up of small discreet units of... View Article

Explain the max plank’s quantum theory and black body radiation

Electromagnetic radiations energy varies from low (microwave) to high (ionizing radiations). When a body (matter) receives energy, either by... View Article

What is rayleigh-jeans law on black body radiation and ‘ultra violet catastrophe’?

The ultraviolet catastrophe or Rayleigh-Jeans catastrophe came into existence in the early 20th century. According tho this class physics... View Article

Explain planck’s quantum theory

In the Newtonian era of nineteenth century, an electromagnetic radiation is believed to be exclusively a waveform, as it has no mass. Reflection,... View Article

What is the general formula for induced emf of a conducting rod moving on a π shaped conductor?

A conducting rod of length ‘l’ is moving smoothly on the parallel rails of a π shaped conductor with a constant velocity (v). As an ext-agency is... View Article

What is motional emf?

Whenever a conducting rod is moving in a magnetic field, either showing translator motion (or) rotatory motions as a result a P.D is established... View Article

An synthetic element has 116 protons in its nucleus. find a place in the modern table and element it, may resemble in properties from the following: i) 55cs ii) 84po iii) 86ra iv) element with 115 protons

Last element with 11 protons (atomic number) is present in the seventh period and eighteenth group. The given element is two protons less and so,... View Article

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Archives

What are the factors affecting the product of electrolysis?

What is electrolysis reactions in aqueous solutions?

Define what is electrolysis and the process of electrolysis

A diatomic molecule is dissociated with a radiation of 3000λ. if, the bond dissociation energy of the molecule is 300kj/mol, calculate the kinetic energy of the atoms

A sodium incandescent bulb emits 589 nm wavelength light at 60watts. calculate the number of photons emitted by the bulb.

Calculate the energy in corresponding to light of wavelength 45nm. Options a) 6.67 ×1015 b) 6.67 ×1011 c) 4.42 × 10-15 d) 4.42×10-18

How did plank explained the black body radiation?

What are the postulates of max plank?

Explain the max plank’s quantum theory and black body radiation

What is rayleigh-jeans law on black body radiation and ‘ultra violet catastrophe’?

Explain planck’s quantum theory

What is the general formula for induced emf of a conducting rod moving on a π shaped conductor?

What is motional emf?

An synthetic element has 116 protons in its nucleus. find a place in the modern table and element it, may resemble in properties from the following: i) 55cs ii) 84po iii) 86ra iv) element with 115 protons

An element has atomic number 115. where will you place this element in the modern periodic table?

Write the atomic number of the element present in the third period and seventeenth group of the periodic table.

What are the demerits of modern periodic table?

What are the salient properties of modern or long form periodic table?

Explain the comparison of mendeleev and modern periodic table

What are the similarities between modern periodic table and mendeleev’s periodic table?

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