Page 1 1 20 20 Page 2 1 20 20 2 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture composition can be represented by either volume, mass or mole fractions. • Work of separation is represented by W i,m /n m , W i,m /n A and W i,m /n B (for Gas A and B). Additionally, it is also represented by W i,A /n A , W i,B /n B and W i,C /n C (for Gas A, B and C). • Ideal work of separation/mole of mixture with N constituents is given by • where y j is mole fraction of j th component. Earlier Lecture Earlier Lecture 1 1 ln ? ? ? ? ? ? ? ? ? ? ? ? ? N i m j j m j W T y n y Page 3 1 20 20 2 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture composition can be represented by either volume, mass or mole fractions. • Work of separation is represented by W i,m /n m , W i,m /n A and W i,m /n B (for Gas A and B). Additionally, it is also represented by W i,A /n A , W i,B /n B and W i,C /n C (for Gas A, B and C). • Ideal work of separation/mole of mixture with N constituents is given by • where y j is mole fraction of j th component. Earlier Lecture Earlier Lecture 1 1 ln ? ? ? ? ? ? ? ? ? ? ? ? ? N i m j j m j W T y n y Outline of the Lecture Outline of the Lecture 3 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay Topic : Gas Separation (contd) • Gibbs Phase Rule • Phase Equilibrium Curves • Temperature Composition Diagrams Page 4 1 20 20 2 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture composition can be represented by either volume, mass or mole fractions. • Work of separation is represented by W i,m /n m , W i,m /n A and W i,m /n B (for Gas A and B). Additionally, it is also represented by W i,A /n A , W i,B /n B and W i,C /n C (for Gas A, B and C). • Ideal work of separation/mole of mixture with N constituents is given by • where y j is mole fraction of j th component. Earlier Lecture Earlier Lecture 1 1 ln ? ? ? ? ? ? ? ? ? ? ? ? ? N i m j j m j W T y n y Outline of the Lecture Outline of the Lecture 3 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay Topic : Gas Separation (contd) • Gibbs Phase Rule • Phase Equilibrium Curves • Temperature Composition Diagrams 4 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture can have various components and can exist in various phases in thermal equilibrium. • For example, a mixture of ice and water is a 1 – component and a two phase mixture. • If number of components and number of phases in thermal equilibrium are denoted by and respectively, then for above mixture and • Similarly, boiling LAir is LOX + LN 2 + N 2 +O 2 . the values of and are and respectively. Introduction Introduction C P 2 ? P 1 C ? C 2 2 P Page 5 1 20 20 2 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture composition can be represented by either volume, mass or mole fractions. • Work of separation is represented by W i,m /n m , W i,m /n A and W i,m /n B (for Gas A and B). Additionally, it is also represented by W i,A /n A , W i,B /n B and W i,C /n C (for Gas A, B and C). • Ideal work of separation/mole of mixture with N constituents is given by • where y j is mole fraction of j th component. Earlier Lecture Earlier Lecture 1 1 ln ? ? ? ? ? ? ? ? ? ? ? ? ? N i m j j m j W T y n y Outline of the Lecture Outline of the Lecture 3 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay Topic : Gas Separation (contd) • Gibbs Phase Rule • Phase Equilibrium Curves • Temperature Composition Diagrams 4 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • A mixture can have various components and can exist in various phases in thermal equilibrium. • For example, a mixture of ice and water is a 1 – component and a two phase mixture. • If number of components and number of phases in thermal equilibrium are denoted by and respectively, then for above mixture and • Similarly, boiling LAir is LOX + LN 2 + N 2 +O 2 . the values of and are and respectively. Introduction Introduction C P 2 ? P 1 C ? C 2 2 P 5 Prof. M D Atrey, Department of Mechanical Engineering, IIT Bombay • Every mixture can be uniquely defined by a set of properties called as Thermostatic Properties. • These properties can either be Intensive (independent of mass) or Extensive (dependent on mass) properties. • Pressure, temperature, density are examples of Intensive properties and volume, enthalpy, entropy are few examples of Extensive properties. Introduction IntroductionRead More

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