I) Write two advantages of fuel cell over ordinary cell.
II) Equilibrium constant () for the given cell reaction is 10. Calculate .

Question

I) Write two advantages of  fuel cell over ordinary cell.II) Equilibrium constant () for the given cell reaction is 10. Calculate .

Philoid · Accepted Answer

I) There are many advantages of fuel cell over ordinary cell which are as follows:

a) These cells do not produce any kind of pollution as they release only water from their tail pipes.

b) Hydrogen fuel cell can be made from the wastewater therefore, it will reduce the amount of sewage water and allows utilization of wastewater.

c) The cost of Hydrogen fuel is low as it is made from recyclable materials and uses wastewater etc

II) Given,

= 10

Reaction:

We know that,

R = 8.314 J mol^-1 K^-1

T = 300 K

F = 96500 J mol^-1 V^-1

n = 2 (2 electrons are getting transferred in the reaction)

Putting all the values in the equation we get,

V or 0.03 V