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Topic: Zinc-air battery problem???  (Read 2167 times)

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Offline ticmmae

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Zinc-air battery problem???
« on: December 06, 2009, 08:15:14 PM »
Air Cathode
Zinc Anode

Net transformation: Zn(s) + 0.5O2(g) -> ZnO(s)

C) What is the energy density (measured as energy in kJ that can be obtained from 1 kg of the metal) of the zinc electrode?

D) If a current of 2.1 x 10^5 A is to be drawn from a zinc-air battery system, what volume of air (in liters) would need to be supplied to the battery every second? Assume the temperature is 25 Celsius and a partial pressure of oxygen is 0.21 atm.

Thanks!

Offline ticmmae

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Re: Zinc-air battery problem???
« Reply #1 on: December 06, 2009, 08:41:08 PM »
I actually got D can anyone help me on C

Offline ticmmae

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Re: Zinc-air battery problem???
« Reply #2 on: December 06, 2009, 11:25:02 PM »
nvm. I got it.

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