BITSAT 2009
- Exam
- BITSAT
- Year
- 2009
- Subject
- Chemistry
- Chapter
- Electrochemistry
BITSAT 2009 · Chemistry · Electrochemistry
In a cell that utilises the reaction Zn(s)+2 H^ + (aq) arrow Zn^ 2+...
In a cell that utilises the reaction
addition of to cathode compartment, will
Options
- Aincrease the and shift equilibrium to the right.
- Blower the and shift equilibrium to the right.
- Clower the and shift equlibrium to the left.
- Dincrease the and shift equilibrium to the left.
Correct answer
A. increase the and shift equilibrium to the right.
Step-by-step solution
\mathrm{Zn}(\mathrm{s})+2 \mathrm{H}^{+}+(\mathrm{aq}) \rightleftharpoons\mathrm{Zn}^{2+}(\mathrm{aq})+\mathrm{H}_{2}(\mathrm{~g})
\mathrm{E}_{\mathrm{cell}}=\mathrm{E}^{{}^{\circ}} \mathrm{cell}-\frac{0.059}{2} \log \frac{\left[\mathrm{\text{ Zn }}^{2+}\right]\left[\mathrm{H}_{2}\right]}{\left[\mathrm{H}^{+}\right]^{2}}\mathrm{H}_{2} \mathrm{SO}_{4} and will also increase and the equilibrium will shift towards RHS.