Chemical Thermodynamics Question 158

Question: For spontaneity of a cell, which is correct [Orissa JEE 2004]

Options:

A) $ \Delta G=0,,\Delta E=0 $

B) $ \Delta G=-ve,,\Delta E=0 $

C) $ \Delta G=+ve,,\Delta E=+ve $

D) $ \Delta G=-ve,,\Delta E=+ve $

Show Answer

Answer:

Correct Answer: D

Solution:

$ \Delta G=\Delta H-T\Delta S $ ; $ \Delta G=\Delta E+P\Delta V-T\Delta S $ For spontaneity $ (\Delta G=-ve) $

$ \because $ $ \Delta G=-ve $ , $ \Delta E=+ve $



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