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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.
Chemical properties of Tri-halides - Oxidation Phosgene is very poisonous gas. To use chloroform as an anaesthetic agent, it is required to save the reaction. The specified tw
Atomic emission spectrometry: In atomic emission spectrometry (AES), a reproducible and representative amount of the sample is introduced into an atomization-excitation source
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Discuss the ion exchange process of water softening. Give an account of the variety of mechanisms of Lubrication. Write notes on bulk and solution polymerization techniques.
The tallest living man today, as recorded, is Allam Chamna of Pakistan. He is 8 feet and 3 inches tall. What is his height in meter?
Illustrate the salient aspects of ionic and metallic bonded crystals. Properties Ionic Metallic Bonding Force The
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