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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.
Physical Properties - Alkenes (i) Alkenes are odourless and colourless. (ii) Alkenes are soluble in organic solvents and insoluble in water. (iii) Physical state of Alken
Q. Define about Crystal Field Theory? This theory is based on two main assumptions. First, all the ligands are considered as point (negative) charges. It means that the size an
Strengths of Phenols - Hydrocarbon The comparative strengths of some phenols (as acids) are like this: p-Nitrophenol > o-Nitrophenol > m- Nitrophenol > Phenol Presence of
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Q. Place these types of light in order from highest to lowest energy. Infrared light, ultraviolet, radio waves, microwaves, green light? Ans: Highest Energy radio waves
Pre And Primary Processing -Some Basic Concepts In the earlier three units, we learnt about the principles and methods of food processing. Certain issues related to production,
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