PHASEChange%20pdf

PHASEChange%20pdf - cr =22.09 MPa v cr =0.003155 m 3/kg •...

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1 Phase Change Process of Pure Substances Phase Change Process of Pure Substances total vapor m m x ? Quality Not valid for compressed liquid or superheated vapor 0<x<1 Phase Change Process of Pure Substances Fig. 2-11 Phase Change Process of Pure Substances Fig. 2-18 Phase Change Process of Pure Substances Critical point – saturated liquid and saturated vapor states are identical For water, T cr =374.14 °C, P
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Unformatted text preview: cr =22.09 MPa, v cr =0.003155 m 3 /kg • For P>P cr , there is no distinct phase change • Latent heat of vaporization – amount of energy absorbed during boiling or released during condensation (per unit mass) • Latent heat of fusion – amount of energy absorbed during melting or released during freezing Phase Change Process of Pure Substances Fig. 2-19...
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