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Anode vs Cathode: Charges & Uses Explained - Physics Forums
2008年7月10日 · anode vs cathode? Hello everyone :) I am having a problem understanding the difference between the anode and cathode in electrochemistry. What I know so far is that the anode is the electrode at which oxidation takes place (and hence donates electrons) and the cathode is the electrode at which reduction takes place (and hence accepts these ...
Galvanic Corrosion: Anode vs. Cathode Mass Gain/Loss - Physics …
2012年8月15日 · In summary, galvanic corrosion occurs when two different metals are in contact with each other and in an electrolyte solution, causing one metal to corrode while the other remains unaffected. In the process, the anode loses electrons to the cathode through the electrode, but it is uncertain whether the cathode gains mass as a result.
Electrolytic Reactions: Anode vs Cathode - Physics Forums
2013年1月22日 · Anode Cathode Reactions In summary, the electrolyte is a good conductor of ions, not electrons, so the electrons will only move from the plates with a good conductor of electrons (wire) connected to the plate +- terminals.
Identifying Anode/Cathode in Electrochemical Cell - Physics Forums
2007年8月23日 · The metal with the lower reduction potential will be the anode, while the one with the higher reduction potential will be the cathode. The balanced equation for the reaction can be written based on the direction of the electron flow. The electrode potential for the cell can be calculated using the equation Ecell = Ec - Ea, where Ec is the
How to make a lead-dioxide cathode? - Physics Forums
2008年5月28日 · Cathode In summary, Isaac is doing an experiment in which he is investigating the kind of effects that sulfation has on lead-acid batteries. He needs to build his own simple cell using lead and lead dioxide electrodes, both immersed in a solution of concentrated sulfuric acid.
Quick question about Electrochemistry anode and cathode
2012年11月28日 · In summary, the anode for the Pb/Pb2+ and Ag/Ag+ reaction is Pb, and the cathode is Ag. Electrons flow towards Ag. For the Ni/Ni2+ and Zn/Zn2+ reaction, the anode is Zn and the cathode is Ni, and electrons flow towards Ni. The standard reduction potential values at 25 degrees Celsius support this conclusion.
Understanding Electrochemistry: Anode and Cathode Reactions
2017年7月3日 · An anode is the electrode where oxidation (loss of electrons) takes place, while a cathode is the electrode where reduction (gain of electrons) takes place. In simpler terms, an anode is the negative terminal and a cathode is the positive terminal in an electrochemical cell.
How to remember the charge of electrodes? - Physics Forums
2010年12月22日 · In both electrolytic and electrochemical cells, electrons flow from anode to cathode outside the cell but still they have different signs in 2 cases. Dec 24, 2010 #17
How Batteries Work: Anode, Cathode & Electrolyte Explained
2016年4月29日 · The electrodes in the Electrolytic Cell are defined in the same way; i.e., Oxidation => Anode & Reduction => Cathode. The difference is the chemistry of the ions in the solution cause the anode to assume a positive charge and the cathode to assume a negative charge; opposite that of the Galvanic Process. Example: NaCl(melt) => Na+(l) + Cl-(l).
Why is the Anode of an LED Connected to Positive? - Physics Forums
2018年2月14日 · A Cathode of a device is the terminal thru which Electrons enter the device. An Anode of a device is the terminal thru which Electrons leave the device. Those are the definitions of Anode and Cathode. If Electrons are entering, that terminal is the Cathode. Electrochemically, that is the terminal at which reduction takes place.