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Entropy (S) is a molecular 'disorder', or more precisely 'the number of microscopic arrangements of energy possible in a macroscopic sample'. Entropy depends strongly on the state and increases with rise in temperature.
Entropy changes (ΔS) are positive for reactions that generate gas molecules. The Second Law of Thermodynamics defines that the total entropy always increases in a spontaneous process, and reaches a maximum value at equilibrium. To apply this to chemical reactions it is necessary to include entropy changes in the surroundings caused by heat output or input. Both external and internal changes are taken account of by defining the Gibbs free energy change (ΔG): for a reaction performing at constant temperature.
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Nomenclature of special compounds Unbranched assemblies that involve two or more identical hydrocarbon units joined via a single bond are named by placing a appropriate numeri
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Q. Show the Occurrence of the f-block element? Apart from promethium which is unstable and is found in traces in uranium ores, all the lanthanides usually occur together. Altho
The electronic configuration of element with atomic number 24 is : (1) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2 (2) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 (3)
I want to know about 3 laws of crystallography,there are Law of constancy of inter facial angles,Law of rational indices,Law of symmetry.
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