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In an electrochemical cell a redox reaction perform in two halves. Electrons are liberated by the oxidation half reaction at one electrode and go through an electrical circuit to another electrode where they are used for the reduction. The cell potential E is the potential difference between the two electrodes have to balance the thermodynamic tendency for reaction, so that the cell is in equilibrium and no electrical current flows. E is related to the molar Gibbs free energy change in the overall reaction according to
where n the number of moles of electrons passed per mole of reaction and F is the Faraday constant (9.6485×104 C mol-1).
Q. What is Stoichiometry? Ans. As you know a chemical equation is like a recipe. Each of the different ingredients combine in certain ratios to form the end product. The
Number of electron does species have The H2 2- ion can be conceived to result from the combination of two hydride ions (H-). This species have four electrons; two occupy the b
Factors Influencing Product Development Product development is an innovative activity designed to meet the changing consumer demands. It is becoming increasingly important in
in which state carbon exist
We can find a compound is acid or base by using litmus test. Acides turnes red litmus to blue colour, in case of base it turnes blue litmus to red.(or) According to arrhenius
If an ideal gas is kept inside a container with movable piston, and is allowed to expand ISOTHERMALLY, then pressure exerted by the gas on the container wall decreses. Why? What h
Describe Hall Effect? Briefly discuss physical origin and uses of Hall Effect? Ans: If a conducting bar is placed in a magnetic field B ⊥ to its axis and if a current flow
Common or trivial names of some organic compounds Compound Common name Compound Common name CH 4 Methane
feature of s, p, d,f block in periodic table
interpretation ande of errors in differential thermal analysis
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