Most Important Selected Qs for JEE AdvancedChemistryElectrochemistry
Paragraph: If a cell has cell potential ' E ' and standard cell potential ' E^0 ', then free energy change of cell process may be calculated as, G=-W=-n F E and G^ =-W_ =-n F E^ Where ' n ' is the number of electrons involved in overall all process. According to Gibs-Helmholtz equation: aligned G & = H - T S G & = H + T ( d G dT )_P aligned Temperature coefficient of cell ' ' will be equal to ( d E d T )_P Question:
Options
- A-312.3 KJ
- B-212.3 KJ
- C-123.2 KJ
- D-323.1 KJ
Correct answer
B. -212.3 KJ
Step-by-step solution
aligned & G^ =-n F E^ & =-2 96500 1.10=-212.3 KJ aligned