How to convert galvanic cell into electrolytic cell?
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Pallavi Kapoor 6 years, 11 months ago
- 1 answers
Related Questions
Posted by Lokesh Gurjar 6 days, 6 hours ago
- 0 answers
Posted by Shivam Yadav 1 month ago
- 4 answers
Posted by Deepak Singh 1 day, 7 hours ago
- 0 answers
Posted by Yash Agrawal 1 month ago
- 2 answers
Posted by Pranjali Rathod 2 weeks, 5 days ago
- 0 answers
Posted by Richa Reji 1 month ago
- 3 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Dr. Kamlapati Bhatt 6 years, 8 months ago
Conversion of a galvanic cell into an electrolytic cell is practically possible by -
(i) connecting the cell to an external source of electricity , and
(ii) providing enough potential difference through this external source , such that , the applied emf exceeds the emf of the galvanic cell itself. [ for example > 1.1 V ,in case of simple Daniel cell ie.( Zn - Cu ) -cell. ]
Explanation :
Thus , In the beginning the external opposing potential is less than 1.1 V. In this case the normal cell reaction occurs in the galvanic cell and the current flows from copper electrode to zinc electrode. But when the opposing potential is increased slowly and gradually it is observed that normal reaction continues to occur till the opposing potential reaches to value of 1.1 V. At this stage the cell reaction stops .& the current continues to flow . Further increase in the opposing potential ( beyond 1.1 V ) again causes the chemical reaction to occur. But now the reaction occurs in opposite direction forcing Zn2+ ions to get reduced and Cu atoms to get oxidised.
Zn2+ (aq) + Cu (s) ----------> Zn (s) + Cu2+ (aq )
0Thank You