Chemistry
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a year agoContributor-Level 10
The potential associated with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gas appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further there action is carried out at 298K, then the potential of each electrode is said to be the Standard Electrode Potential. By convention, the standard electrode potential (E? ) of hydrogen electrode is 0.00 volts. The electrode potential value for each electrode process is a measure of the relative tendency of the active species in the process to remainin the oxidised/reduced fo
New answer posted
a year agoContributor-Level 10
Two methods are used to balance chemical equations for redox processes. One of these methods is based on the change in the oxidation number of reducing agent and the oxidising agent (i.e. oxidation number method) and the other method is based on splitting the redox reaction into two half reactions — one involving oxidation and the other involving reduction (half reaction method). Both these methods are in use and the choice of their use rests with the individual using them.
New answer posted
a year agoContributor-Level 10
(a) Combination reactions (b) Decomposition reactions (c) displacement reactions (d) Disproportionation reactions.
New answer posted
a year agoContributor-Level 10
Electrochemical series is the series of elements in which elements are arranged in decreasing order of their reduction potential.
Reducing power goes on increasing whereas oxidising power goes on decreasing down the series.
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a year agoContributor-Level 10
Electrochemical cell is a device in which the redox reaction is carried indirectly and the decrease in free energy appears as electrical energy.
At cathode there is gain of electrons.
At anode there is loss of electrons.
In electrochemical cell anode is written on L.H.S while cathode is written on R.H.S.
New answer posted
a year agoContributor-Level 10
(b) Oxidation involves gain of one or more electrons by a species during a reaction.
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a year agoNew answer posted
a year agoContributor-Level 10
5.42. Dalton's law of partial pressure: When two or more non-reacting gases are enclosed in a vessel, the total pressure of the gaseous mixture is equal to the sum of the partial pressures that each gas will exert when enclosed separately in the same vessel at constant temperature.
P= P1 + P2 + P3
Where, P is the total pressure of the three gases A, B, and C enclosed in a container. P1, P2 and P3 are the partial pressures of the three gases when enclosed separately in the same vessel at a given temperature one by one.
No, the law cannot be applied. Carbon monoxide and oxygen readily combine to form carbon dioxide. The law can be appl
New answer posted
a year agoContributor-Level 10
(c) In ClO4–, chlorine is in maximum oxidation state of +7. So, it does not show the disproportionation reaction.
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