Identify the Enthalpy of State 1 to 4 (h1, h2, h3 and h4) Note: Point 2 and 4 are saturated.412VProcess 1-2 IsometricProcess 2-3 IsothermalProcess 3-4 IsometricProcess 4-1 IsothermalGiven:@ point1; Entropy = 9 KJ/Kg-K, Pressure = 0.64 MPa@ point3 X=0.23.

It is asked to find the enthalpy at each state points

Answered: Identify the Enthalpy of State 1 to 4…

Engineering

Mechanical Engineering

Identify the Enthalpy of State 1 to 4 (h1, h2, h3 and h4)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.4DP

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

Identify the Enthalpy of State 1 to 4 (h₁, h₂, h₃ and h₄)

Note: Point 2 and 4 are saturated.
4
1
2
V
Process 1-2 Isometric
Process 2-3 Isothermal
Process 3-4 Isometric
Process 4-1 Isothermal
Given:
@ point1; Entropy = 9 KJ/Kg-K, Pressure = 0.64 MPa
@ point3 X=0.2
3.

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