Identify which half-reactions occur at the anode and cathode.
O2 + 2H2O + 4e + 40H-
Cd2+ + 2e → Cd
The O2 reaction occurs at the
C, and
the Cd2+ reaction occurs at the
Sn2+ + 2e → Sn
Mn2+ + 2e → Mn
The Sn reaction occurs at the
, and

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the ratio of the conjugate base to the acid required to attain the desired ph.