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Biology notes class 11th.Pdf
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CBSE Class 12 Biology Notes: Chapter wise CBSE Class 12 Biology Notes are provided to help student prepare well for the exams. Through CBSE Notes for Class 12 Biology students can make the most out of their study time. Biology Notes for Class 12 include well-researched information about all the chapter topics and students will be able to understand each topic clearly. With these CBSE Notes for Class 12 Biology, students will further be able to revise all the important topics quickly and be stress-free especially before the board examinations. The CBSE Class 12 Biology Notes have been prepared by subject experts and covers each chapter in detail. Additionally, these CBSE Class 12 Biology Notes involve both the questions and answers which are most expected to appear in Class 12 board examination. Students will also find neat and labelled diagrams to all the questions that are mainly based on the NCERT textbook. Students can refer these CBSE Class 12 Biology Notes both for their home ass
Solubility of solid to liquid
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As with all processes under constant pressure and constant temperature, dissolving a solution into solution will occur only if ΔG total<0. ΔGsol=ΔHsol−TΔSsol <0 For dissolving solids in liquids, ΔSsol>0, but for dissolving gases solutes, the entropy of solution is negative (ΔSsol<0) since the entropy of the gas phase solute is appreciably greater than the entropy of that solute in solution. Consequently, the only way that ΔGsol<0 for a dissolving a gas in solution is if the solution process is exothermic (i.e., ΔHsol<0). This occurs due to the enthalpy differences from making and breaking intermolecular interactions in the solvent and solution. There are three basic steps involved in dissolving a solute from a condensed state (or a non-ideal gas) into a solution each with a corresponding enthalpy change. Steps involved in Dissolving of a solute in a solvent Dissolution can be viewed as occurring in three steps: 1. Breaking solute-solute attractions (endothermic), i.