The Total solution for NCERT class 6-12
In the button cells widely usedin watches and other devices the following reaction takes place:
Zn(s) + Ag2O(s) + H2O(l)→ Zn2+(aq) + 2Ag(s) + 2OH−(aq)
= −2 × 96487 × 1.04
= −213043.296 J
= −213.04 kJ