Positive and negative standard potential

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Clara Cho 2K
Posts: 103
Joined: Wed Sep 18, 2019 12:18 am

Positive and negative standard potential

Postby Clara Cho 2K » Mon Feb 24, 2020 8:07 am

Cam someone explain the connection between positive and negative standard potentials and its thermodynamic tendencies with hydrogen?

Brian_Ho_2B
Posts: 221
Joined: Fri Aug 09, 2019 12:16 am

Re: Positive and negative standard potential

Postby Brian_Ho_2B » Mon Feb 24, 2020 8:42 am

Substances with a higher, positive standard reduction potentials are not able to reduce H+ to H2, while substances with lower, negative reduction potentials can reduce H+ to H2.

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: Positive and negative standard potential

Postby 805097738 » Mon Feb 24, 2020 4:10 pm

Brian_Ho_2B wrote:Substances with a higher, positive standard reduction potentials are not able to reduce H+ to H2, while substances with lower, negative reduction potentials can reduce H+ to H2.


why would the substance with a higher reduction potential has less potential to reduce H+? Sounds counter intuitive

Bilal Pandit 1J
Posts: 98
Joined: Wed Sep 11, 2019 12:16 am

Re: Positive and negative standard potential

Postby Bilal Pandit 1J » Mon Feb 24, 2020 4:46 pm

The more positive reduction potential makes it easier to oxidize hydrogen, which means that it will be harder to reduce hydrogen.


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