1.

The reactio is spontaneous if the cell potential is

Answer»

POSITIVE
Negative
Zero
Infinite

Solution :EMF=[s.r.p. of cathode-s.r.p. of anode]
Where s.r.p.=Standard reduction potential
IF EMF is positive then the reaction is spontaneous
For e.g. in Galvanic CELL
(a) EMF=1.1 VOLT
(b) Cathode is MADE of copper
(c) Anode is made of Zinc
EMF=0.34 (-0.76)=1.1 volt


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