Home
Class 12
CHEMISTRY
If 'F' is Faraday and 'N' is Avogadro nu...

If 'F' is Faraday and 'N' is Avogadro number, then charge of electron can be expressed as -

A

`FxxN`

B

`(F)/(N)`

C

`(N)/(F)`

D

`F^(2)N`

Text Solution

AI Generated Solution

The correct Answer is:
To find the charge of an electron in terms of Faraday's constant (F) and Avogadro's number (N), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Constants**: - Faraday's constant (F) is the amount of electric charge per mole of electrons. Its approximate value is 96485 C/mol. - Avogadro's number (N) is the number of particles (atoms, molecules, etc.) in one mole, which is approximately \(6.022 \times 10^{23}\) mol\(^{-1}\). 2. **Relationship Between Constants**: - The relationship between Faraday's constant, Avogadro's number, and the charge of an electron (e) can be expressed as: \[ F = N \times e \] - Here, \(e\) is the charge of a single electron. 3. **Rearranging the Equation**: - To find the charge of an electron, we can rearrange the equation: \[ e = \frac{F}{N} \] 4. **Substituting Known Values**: - We know that: - \(F \approx 96485 \, \text{C/mol}\) - \(N \approx 6.022 \times 10^{23} \, \text{mol}^{-1}\) - Substituting these values into the equation gives: \[ e = \frac{96485 \, \text{C/mol}}{6.022 \times 10^{23} \, \text{mol}^{-1}} \] 5. **Calculating the Charge of an Electron**: - Performing the calculation: \[ e \approx 1.602 \times 10^{-19} \, \text{C} \] ### Final Answer: The charge of an electron can be expressed as: \[ e = \frac{F}{N} \]
To find the charge of an electron in terms of Faraday's constant (F) and Avogadro's number (N), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Constants**: - Faraday's constant (F) is the amount of electric charge per mole of electrons. Its approximate value is 96485 C/mol. - Avogadro's number (N) is the number of particles (atoms, molecules, etc.) in one mole, which is approximately \(6.022 \times 10^{23}\) mol\(^{-1}\). ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise Level-2|65 Videos

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|57 Videos

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise Level-0 (Long Answer Type ) (5 Marks)|1 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    VMC MODULES ENGLISH|Exercise JEE ADVANCE (ARCHIVE)|30 Videos

  • ENVIRONMENTAL CHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|39 Videos

Similar Questions

Explore conceptually related problems

What is the value of Avogadro's Number ?

If N_(A) is Avogadro's number then number of valence electrons in 4.2 g of nitride ions (N^(3-))

Knowledge Check

  • If f(x)=sqrt(x^(2)) , then f(x) can also be expressed as

    A
    x
    B
    `-x`
    C
    `+-x`
    D
    `|x|`

  • The number of electrons present in -1 C of charge is

    A
    `6.25xx10^(18)`
    B
    `1.6xx10^(19)`
    C
    `6xx10^(19)`
    D
    `1.6xx10^(18)`

    • Similar Questions

    Explore conceptually related problems

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). When 96,500 coulombs is divided by the charge on the electron in coulomb, the answer is equal to.........

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). The movement of ions towards oppositely charged electrode is called.........

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). The cations on reaching.....gain electrons and form neutral atoms which get deposited on the cathode.

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). In a Daniell cell, the copper vessel serves as.........

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). Oxidation is a process which involves........

    Fill in the blanks by choosing the appropriate word/words from those given in the brackets: (ionic conduction, electronic conduction, anode, cathode, one coulomb, one faraday of their equivalent weights, of their molecular weights, decoration, Avogadro's number, proton number, loss of electrons, gain of electrons, can, cannot, e.m.f., negative, positive, greater, H_(2) , sodium, less, more, bad, good, increases, decreases electrode potential, negative, positive, greater, less, H_(2), O_(2) , more). The more ............ the standard reduction potential of a metal the ........... is its ability to displace hydrogen from acids.

    Home
    Profile