मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान इयत्ता १२

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is ____________.(charge of electron = 1.6 × 10−19 C) - Chemistry

Advertisements
Advertisements

प्रश्न

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is ____________.
(charge of electron = 1.6 × 10−19 C)

पर्याय

  • 6.22 × 1023

  • 6.022 × 1020

  • 3.75 × 1020

  • 7.48 × 1023

MCQ
रिकाम्या जागा भरा

उत्तर

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is 3.75 × 1020.

Explanation:

Q = It

= 1A × 60S

96500 C charge ≡ 6.022 × 1023 electrons

60 C charge ≡ `(6.022 xx 10^23)/96500 xx 60`

= 3.744 × 1020 electrons

shaalaa.com
Thermodynamics of Cell Reactions
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Electro Chemistry - Evaluation [पृष्ठ ६३]

APPEARS IN

सामाचीर कलवी Chemistry - Volume 1 and 2 [English] Class 12 TN Board
पाठ 9 Electro Chemistry
Evaluation | Q 10. | पृष्ठ ६३

संबंधित प्रश्‍न

Consider the following half cell reactions:

\[\ce{Mn^{2+} + 2e^- -> Mn}\] E0 = –1.18 V

\[\ce{Mn^{2+} -> Mn^{2+} + e^-}\] E0 = –1.51 V

The E0 for the reaction \[\ce{3Mn^{2+} -> Mn + 2Mn^{3+}}\], and the possibility of the forward reaction are respectively.


During electrolysis of molten sodium chloride, the time required to produce 0.1 mole of chlorine gas using a current of 3A is ___________.


While charging lead storage battery


Among the following cells

I) Leclanche cell

II) Nickel – Cadmium cell

III) Lead storage battery

IV) Mercury cell

Primary cells are:


For the cell reaction

\[\ce{2Fe^{3+}_{( aq)} + 2l^-_{( aq)} -> 2Fe^{2+}_{( aq)} + l2_{( aq)}}\]

\[\ce{E^0_{cell}}\] = at 298 K. The standard Gibbs energy (∆G°) of the cell reactions is:


State Faraday’s Laws of electrolysis.


Calculate the standard emf of the cell: \[\ce{Cd|Cd^{2+}||Cu^{2+}|Cu}\] and determine the cell reaction. The standard reduction potentials of Cu2+|Cu and Cd2+|Cd are 0.34 V and −0.40 volts respectively. Predict the feasibility of the cell reaction.


The same amount of electricity was passed through two separate electrolytic cells containing solutions of nickel nitrate and chromium nitrate respectively. If 2.935 g of Ni was deposited in the first cell. The amount of Cr deposited in the another cell?
Given: molar mass of Nickel and chromium are 58.74 and 52 gm−1 respectively.


Derive an expression for the Nernst equation.


Explain the function of H2 – O2 fuel cell.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×