GATE MT · 2022 · MT
Question 49: Electrochemistry
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Question 49
MTNAT2 marksNeeds review
The emf of the cell
Au-Pb(liquid) | PbCl
-KCl(liquid) | Cl
(gas, 0.5 atm), C(graphite)is 1.2327 V at 873 K. Activity of Pb in the Au-Pb alloy is 0.72 and the activity of PbCl
in the electrolyte is 0.18. The standard Gibbs energy of formation of PbCl
(liquid) at 873 K is ______ kJ·mol
(round off to 1 decimal place).Given:
and
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2022MT
GATE MT 2022 · Paper 1
Metallurgical Engineering · Original paper archive
- Section
- Metallurgical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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