What does standard hydrogen electrode mean?
Definitions for standard hydrogen electrode
stan·dard hydro·gen elec·trode
This dictionary definitions page includes all the possible meanings, example usage and translations of the word standard hydrogen electrode.
Wiktionary
standard hydrogen electrodenoun
An electrode with a standard electrode potential of zero; used as a standard against which other electrodes are measured.
Wikidata
Standard hydrogen electrode
The standard hydrogen electrode, is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential is declared to be zero at all temperatures. Potentials of any other electrodes are compared with that of the standard hydrogen electrode at the same temperature. Hydrogen electrode is based on the redox half cell:+- This redox reaction occurs at platinized platinum electrode. The electrode is dipped in an acidic solution and pure hydrogen gas is bubbled through it. The concentration of both the reduced form and oxidised form is maintained at unity. That implies that the pressure of hydrogen gas is 1 bar and the activity of hydrogen ions in the solution is unity. The activity of hydrogen ions is their effective concentration, which is equal to the formal concentration times the activity coefficient. These unit-less activity coefficients are close to 1.00 for very dilute water solutions, but are usually lower for more concentrated solutions. The Nernst equation should be written as:+++04−105
Numerology
Chaldean Numerology
The numerical value of standard hydrogen electrode in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of standard hydrogen electrode in Pythagorean Numerology is: 3
Translations for standard hydrogen electrode
From our Multilingual Translation Dictionary
- मानक हाइड्रोजन इलेक्ट्रोडHindi
- standard hidrogénelektródHungarian
- elektroda hidrogen standarIndonesian
- стандартний водневий електродUkrainian
- معیاری ہائیڈروجن الیکٹروڈUrdu
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"standard hydrogen electrode." Definitions.net. STANDS4 LLC, 2024. Web. 30 Apr. 2024. <https://www.definitions.net/definition/standard+hydrogen+electrode>.
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