JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

When

\mathrm{1}\,\,\mathrm{kg}

of hydrogen forms water,

34\,\, \times \,\,{10^6}

cal of heat is liberated. If ECE of hydrogen is

\left( {1/96500,000} \right)kg\,\,{\mathrm{C}^{ - 1}}

, then the minimum voltage requird for decomposition of water is

View answer and explanation

Correct option: C

{\mathrm{1}\mathrm{.5 }\,\mathrm{V}}

Option C (

{\mathrm{1}\mathrm{.5 }\,\mathrm{V}}

) is correct because it correctly calculates the minimum voltage required for decomposition of water using the heat liberated and ECE of hydrogen.

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