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Find the Time Required to Liberate 1.0 Litre of Hydrogen at Stp in an Electrolytic Cell by a Current of 5.0 A. - Physics

Sum

Find the time required to liberate 1.0 litre of hydrogen at STP in an electrolytic cell by a current of 5.0 A.

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Solution

Let the required time be t.

Mass of 1 litre hydrogen,

\[m = \frac{2}{22 . 4}  g\]

Using the formula, m = Zit, we get:-

\[\frac{2}{22 . 4} = \frac{1 \times 5 \times t}{96500}\]

\[ \Rightarrow t = \frac{2 \times 96500}{22 . 4 \times 5}\]

\[ \Rightarrow t = 1723 . 21 s = 28 . 7\text{ minutes} \approx 29\text{ minutes}\]

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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 11 Thermal and Chemical Effects of Current
Q 19 | Page 219
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