AP EAMCET202316 May 2023Morning ShiftChemistryElectrochemistryActual
The time required (in hours) to reduce 3 ~mol of Fe ³⁺ ions to Fe ²⁺ ions with 2.0 amperes of current is (1 ~F =96500 C mol ⁻¹ )
Options
- A30.2
- B40.2
- C10.2
- D15.2
Correct answer
B. 40.2
Step-by-step solution
i =2.0 ~A , t =?3 Fe ³⁺+3 e ⁻ 3 Fe ²⁺ Charge of 3 moles of e ⁻=3 96500=289,500 C . aligned & t = Q i = 289,500 2.0 =144,750 seconds & =40.208 hours. aligned