In a cell that utilises the reaction Zn ( s ) + 2 H + ( aq ) → Zn 2 + ( aq ) + H 2 ( g ) addition of H 2 SO 4 to cathode compartment, will

Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsHard2 minPYQ_2009

ChemistryHardsingle choice

In a cell that utilises the reaction $Zn (s) + 2 H^{+} (aq) \to Zn^{2 +} (aq) + H_{2} (g)$ addition of $H_{2} SO_{4}$ to cathode compartment, will

Options:

Answer:

Solution:

$Zn (s) + 2 H^{+} + (aq) ⇌$ $Zn^{2 +} (aq) + H_{2} (g)$ $E_{cell} = E^{\circ} cell - \frac{0.059}{2} lo g \frac{[ Zn ^{2 +} ] [ H _{2} ]}{[ H ^{+} ] ^{2}}$ Addition of $H_{2} SO_{4}$ will increase $[H^{+}]$ and $E_{cell}$ will also increase and the equilibrium will shift towards RHS.

Stream:BITSATSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells

⏱ 2mℹ️ Source: PYQ_2009

Doubts & Discussion

Loading discussions...