1.

Which one of the following statement is always true about the spontaneous cell reaction in a galvanic cell?

Answer»

`E_(cell) gt 0, DeltaG^(@) gt 0, Q gt K_(c)`
`E_(cell)^(@) lt 0, DeltaG^(@) lt 0, Q lt K_(c)`
`E_(cell)^(@) gt 0, DeltaG^(@) lt 0, Q lt K`
`E_(cell)^(@) gt 0, DeltaG^(@) lt 0, Q gt K_(c)`.

SOLUTION :For spontaneous cell REACTION, `E_(cell)^(@)=+ve," i.e., "gt0,DeltaG^(@)=-ve, " i.e., "lt0 and Q lt K_(c)`
(ALSO, remember that `-DeltaG^(@)=RT" ln "K.` -ve `DeltaG` implies that ln K will be +ve, i.e., Kgt1)


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