Which statements is true about a spontaneous cell reaction in galvanic cell?

Options

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

Answer

C

Explanation

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)