Tamil Nadu Board of Secondary EducationHSC Science Class 12th

# 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

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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)

• 6.22 × 1023

• 6.022 × 1020

• 3.75 × 1020

• 7.48 × 1023

#### Solution

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

Concept: Thermodynamics of Cell Reactions
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#### APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 12th Chemistry Volume 1 and 2 Answers Guide
Chapter 9 Electro Chemistry
Evaluation | Q 10. | Page 63
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