Which of the following net cell reaction takes place in a galvanic cell containing copper electrode and standard hydrogen electrode ? E ^ ( Cu _ ( aq ) ⁺² Cu _ ( s ) )=+0 34 ~V

Step-by-step solution

Net Cell Reaction Determination via Standard Potentials A cell's net reaction is governed by standard reduction potentials: the higher potential species undergoes reduction (cathode), while the lower is oxidized (anode). Given E^ _ Cu ²⁺| Cu = +0.34 V and E^ _ 2 H ^+| H ₂ = 0.00 V , copper ions reduce and hydrogen oxidizes. Cathode reaction: Cu ²⁺_ ( aq ) + 2 e ^- Cu _ ( s ) Anode reaction: H _ 2( g ) 2 H ^+_ ( aq ) + 2 e ^- Net cell reaction: H _ 2( g ) + Cu ²⁺_ ( aq ) 2 H ^+_ ( aq ) + Cu _ ( s ) This yields E^ _