AP EAMCET20228 Jul 2022Morning ShiftChemistryElectrochemistryActual
The cell potential for the following cell notation is approximately aligned & M ( s ) | M ³⁺( aq , 0.01 M ) | N ²⁺( aq , 0.1 M ) | N ( s ) & E _ M ³⁺ / M ^0=0.6 ~V and E _ N ²⁺ / N ^0=0.1 ~V aligned
Options
- A0.51 ~V
- B1.5 ~V
- C2.0 ~V
- D2.5 ~V
Correct answer
A. 0.51 ~V
Step-by-step solution
( M M ³⁺+3 e ) 2 ; ( N ²⁺+2 e N ) 3 Overall reaction : 2 M ( s )+3 ~N ²⁺( aq ) 2 M ³⁺( aq )+3 ~N ( ~s ) E _ cell = E _ cell ^ - 0.059 6 [ M ³⁺ ]^2 [ ~N ²⁺ ]^3 aligned & =-0.6+0.1- 0.059 6 (10⁻² )^2 (10⁻¹ )^3 & =-0.5- 0.059 6 10⁻¹=0.51 ~V aligned