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An ideal gas flows through a horizontal tube at a steady state. no heat is added and no shaft work is done.the cross sectional area of the tube changes with lenght and this causes the velocity to change. derive an euation relating the temperature to the velocity of the gas.if nitrogen at 150 degree celcius flows past one section of the tube at a velocity of 2.5 metre/second,what is its temperature at another section where its velocity is 50 m/s

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