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 ...

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.

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.

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.

2017年7月3日 · I have an anode and a cathode separated by water with current flowing between. There is some oxygen dissolved in the water so the reaction O2 + 2H20 + 4e -> 4OH occurs. Electrons flow out of the anode and into the cathode. At the anode, the electrons are used to convert O2 and H20 to OH (hydroxide).

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

2007年8月23日 · For the following metal couples, indicate which will be the anode and cathode respectively in an electrochemical cell. Write balanced equations for the reactions, and calculate the electrode potential for the cell in each case, assuming standard conditions. Note which metal will corrode if they are in contact in a moist environment.

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.

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).

2008年5月27日 · Hi all, I'm doing an experiment in which I am investigating the kind of effects that sulfation has on lead-acid batteries. In order to do that, I have to build my own simple cell using lead and lead dioxide electrodes, both immersed in a …