ElectrochemistryStandard Hydrogen Electrode1Choose the best answerThe standard reduction potential of Cu²⁺/Cu is +0.34 V relative to SHE. When Cu²⁺/Cu is connected spontaneously with SHE, the reaction at SHE is:A2H⁺ + 2e⁻ → H₂BH₂ → 2H⁺ + 2e⁻C2H⁺ + 2e⁻ → 2HDH₂ → 2H + 2e⁻ Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode2Choose the best answerThe standard potential assigned to SHE, E° = 0.00 V, is:AAn assigned reference valueBThe absolute potential of hydrogenCObtained by directly measuring one isolated electrodeDEqual to 1.00 V experimentally Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode3Choose the best answerStandard conditions for the hydrogen electrode include:AH₂ at approximately 1 bar pressureBUnit activity of H⁺CTemperature commonly specified as 298 KDAll of these Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode4Choose the best answerSHE acts as an anode with Cu but as a cathode with Zn because:AZn has a lower E°red than H⁺/H₂, while Cu has a higher E°redBZn has a higher E°red than CuCCu has a lower E°red than ZnDHydrogen always acts only as an anode Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode5Choose the best answerWhich statement is NOT correct for the standard hydrogen electrode?APlatinum black is used on the Pt electrodeBThe standard temperature is commonly taken as 298 KCA 1 M H₂SO₄ solution is specifically requiredDIt is used as a reference for measuring electrode potentials Like 0 Discuss 0Share