Question

a. Write general form of conservation of energy equation for an open system and explain each term (5 points) b. Write general form of conservation of momentum equation for an open system and explain each term (5points) c. How do we define "flow work" and why is it important? (5points)

Answer 1

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tw A it can be written as : hitc, ²2 + gz, t Q =h22 +6₂ 2+922 where, codé Cz - velocities We work done. A, & h2= enthalpier 0 - Heat Transfer 7,422 = height/evention It can be stated as: he the total momentum before colli'ssion is equal to total momentum after collision for two objects having collision between them. © work in thermodynamics is very important Solutions term to push mass flow in on out of control volume. flow work is mandatory) critical in main - taining a continous flow throughout a control volume, [mivi (M, V,+ m2 V2) Before = (miv, + m2 +vz) after