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Compressor Theory of Gas Compression Air has weight and it is the weight of the column of air over a particular location that determines the atmospheric pressure at that particular location.  At sea level and under average temperature and moisture conditions, a one square inch column of air extending up to the uppermost limit of the atmosphere weighs about 14.7 pounds.  Atmospheric pressure at sea level is, therefore, about 14.7 pounds per square inch at 60F and 36% relative humidity.  Consider a confined volume of gas. The gas molecules are distributed throughout the volume and are widely separated as compared to their size. They move at high velocity and collide frequently with each other and with the walls of the vessel.  The continuous bombardment of the enclosing walls produces pressure and the intensity of pressure depends on the number, mass, and velocity of the molecules.  Temperature is a measure of the kinetic energy of the molecule...

ENGINEERING MATHEMATICS Linear Algebra: Matrix algebra, systems of linear equations, Eigen values and Eigen vectors. Calculus: Functions of single variable, limit, continuity and differentiability, mean value theorems, evaluation of definite and improper integrals, partial derivatives, total derivative, maxima and minima, gradient, divergence and curl, vector identities, directional derivatives, line, surface and volume integrals. Theorems of Stokes, Gauss and Green. Differential Equations: First order linear and nonlinear equations, higher order linear ODEs with constant coefficients, Cauchy and Euler equations, initial and boundary value problems, Laplace transforms. Partial differential equations and separation of variables methods. Numerical methods: Numerical solution of linear and nonlinear algebraic equations, integration by trapezoidal and Simpson rule, single and multi-step methods for differential equations. Flight Mechanics Atmosphere: Properties...

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