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ENTROPY_AHL(MAH) Opp

# ENTROPY_AHL(MAH) Opp - ENERGETICS 100s of free ppts from...

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ENERGETICS ΔG = Δ H - T Δ S 100’s of free ppt’s from www.pptpoint.com library

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As a manufacturer….. What is important in Chemistry? Thermodynamics (Energetics) tells you whether a reaction is possible Kinetics (Rates of reaction) tells you how long it takes Equilibrium tells you the extent of the reaction
15.3 Entropy (1.5h) 15.3.1 State and explain the factors that increase the entropy of a system 15.3.2 Predict whether the entropy change ( S) for a given reaction or process is positive or negative.15.3.3 Calculate the standard entropy change for a reaction ( S) using standard entropy values ( S Θ ) 15.4 Spontaneity (2.5h) 15.4.1 Predict whether a reaction or process will be spontaneous by using the sign of ∆ G Θ . 15.4.2 Calculate ∆ G Θ for a reaction using the equation ∆ G Θ = ∆ H Θ - T S Θ or by using values of the standard free energy change of formation, ∆ G f Θ 15.4.3 Predict the effect of a change in temperature on the spontaneity of a reaction using standard entropy and enthalpy changes and the equation G Θ = ∆ H Θ - T S Θ .

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Introduction: Thermodynamics is the study of heat energy changes and other related quantities which occur during physical and chemical changes. A spontaneous change , once begun, continues on its own with no further outside assistance. Thermodynamics is able to tell us whether a change is spontaneous or not - if we consider all of the possible factors which affect spontaneity. The heat energy content change is called the enthalpy change of a reaction. Exothermic reactions, where ΔH is negative, occur more frequently than endothermic ones and so appear to be more favoured.
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