Articles Posted in the " Entropy " Category


  • * FEW IMPORTANT FACTS ABOUT ENTROPY

    * FEW IMPORTANT FACTS ABOUT ENTROPY

    FEW IMPORTANT FACTS ABOUT ENTROPY (a) Difference of entropy is path independent. (b) Exothermic reactions increase entropy. Exothermic reactions are spontaneous which result in more disorder and hence increase in entropy. (c) Complexity of molecules show increase of entropy (s (propane) > s (ethane) > s(methane)) (d) Phase change from solid to liquid and liquid […]


  • * INCREASE OF ENTROPY PRINCIPLE

    * INCREASE OF ENTROPY PRINCIPLE

    INCREASE OF ENTROPY PRINCIPLE ∇S = S2 – S1                            =[ ∫(δq/T) + Sgen]  > ∫(δq/T) (System) (entropy change)= ( entropy change (Entropy due to heat transfer)+ due to heat generation) As per this principle in any thermodynamic system (isolated, open and closed […]


  • * ENTROPY FROM SECOND LAW OF THERMODYNAMICS

    * ENTROPY FROM SECOND LAW OF THERMODYNAMICS

      ENTROPY FROM SECOND LAW OF THERMODYNAMICS Clausius inequality states that over a complete cycle ∫(δq/T) ≤0 Where δq is the differential heat transfer & T is the absolute temperature at the boundary where the heat transfer δq occurs Clausius inequality is applicable for all cycles. There will no change of entropy if returns to […]