Cell Potential

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Hellen Truong 2J
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Joined: Sat Jul 22, 2017 3:00 am
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Cell Potential

Postby Hellen Truong 2J » Sun Feb 25, 2018 10:03 pm

Why is the reduction potential for hydrogen 0?

Sean Monji 2B
Posts: 66
Joined: Fri Sep 29, 2017 7:06 am

Re: Cell Potential

Postby Sean Monji 2B » Sun Feb 25, 2018 10:10 pm

I read that the potential of hydrogen is set as zero to set a standard to which other cells can be compared to (positive or negative). Not sure if this is completely accurate but it seems like it makes sense.
Hope that helps

Anna Li 2E
Posts: 21
Joined: Sat Jul 22, 2017 3:00 am

Re: Cell Potential

Postby Anna Li 2E » Sun Feb 25, 2018 10:10 pm

In actuality Hydrogen's absolute electrode potential isn't ACTUALLY 0, however it is set to 0 in order to create a basis of comparison with other redox reactions. This creates a reference point for other redox reactions which makes it easier to measure and discuss these reactions.

Rebecca Doan 2L
Posts: 51
Joined: Thu Jul 27, 2017 3:01 am

Re: Cell Potential

Postby Rebecca Doan 2L » Sun Feb 25, 2018 10:46 pm

hydrogen's cell potential is zero so that it is possible to calculate the cell potential of the other electrode. Standard potentials only give us the overall cell potential and not just one electrode. Therefore, we arbitrarily set the standard potential of hydrogen to zero at all temperatures.

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Re: Cell Potential

Postby AtreyiMitra2L » Sun Feb 25, 2018 11:30 pm

It just the standard because we can only calculate the change rather than the actual value

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