| ⇦ | 
| ⇨ |
For a thermodynamically reversible reaction in a galvanic cell at temperature T, which one of the following is false
Options
(a) -ΔG = Wmax
(b) ΔG⁰ = -RT ln K
(c) ΔG = – n F Ecell
(d) ΔH =TΔS
Correct Answer:
ΔH =TΔS
Explanation:
As – ΔG = W(max). Electrical work done = nFE(cell), therefore -ΔG = nFE(cell). E⁰(cell) = RT/nF ln K(c). Therefore -ΔG = nF RT/nF ln K(c) = RT lnK(c) or ΔG⁰ = -RT ln K(c). When ΔG is zero, process does not occur. ΔG = ΔH -TΔS = 0. Therefore ΔH =TΔS.
Related Questions: - If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- Which of the following is an ore of aluminium
- In Gabriel phthalimide synthesis, the compound obtained is
- Metallic sodium can be stored in
- A physician wishes to prepare a buffer solution at pH = 3.85
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- Which of the following is an ore of aluminium
- In Gabriel phthalimide synthesis, the compound obtained is
- Metallic sodium can be stored in
- A physician wishes to prepare a buffer solution at pH = 3.85
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply