How to Identify the Phase of Steam Using a Thermodynamics Table?

In summary, the problem aims to determine the phase of steam at T=110 Celsius and P=55.732 kPa using A-4 Table. The solution is found to be superheated vapor, given that the temperature is the same but the pressure is lower than the saturated water at 110 Celsius. To determine whether it is saturated liquid, saturated vapor, or a saturated mixture, more information such as the macroscopic density of the mixture is needed.
  • #1
dhkdeoen
11
0

Homework Statement

[/B]
Determine the phase of the steam (compress liquid, saturated liquid, saturation mixture, saturated vapor, superheated vapor, or supercritical vapor). Use A-4 Table.

T=110 Celsius
P=55.732 kPa

Homework Equations


A-4 Table: http://che31.weebly.com/uploads/3/7/4/3/3743741/handout_g1-saturatedwater-temperature.pdf

The Attempt at a Solution


[/B]
From A-4 Table, Saturated Water at 110 Celsius got 143.38 kPa. For the problem it has same temperature, but lower pressure. So it means it's superheated vapor, right?

what I want to know is, how am I supposed to tell it's whether saturated water, saturated mixture or saturated vapor. or even supercritical vapor.

Like, if the problem was to determine phase at T=110 Celsius and P=143.38kPa, should it be saturated liquid or saturated mixture?
 
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  • #2
dhkdeoen said:

Homework Statement

[/B]
Determine the phase of the steam (compress liquid, saturated liquid, saturation mixture, saturated vapor, superheated vapor, or supercritical vapor). Use A-4 Table.

T=110 Celsius
P=55.732 kPa

Homework Equations


A-4 Table: http://che31.weebly.com/uploads/3/7/4/3/3743741/handout_g1-saturatedwater-temperature.pdf

The Attempt at a Solution


[/B]
From A-4 Table, Saturated Water at 110 Celsius got 143.38 kPa. For the problem it has same temperature, but lower pressure. So it means it's superheated vapor, right?
Right.
what I want to know is, how am I supposed to tell it's whether saturated water, saturated mixture or saturated vapor. or even supercritical vapor.
Well, in this problem, the only choices are superheated vapor or supercritical vapor. You know it's not supercritical vapor, because the temperature is not above the critical temperature.
Like, if the problem was to determine phase at T=110 Celsius and P=143.38kPa, should it be saturated liquid or saturated mixture?
From the information provided, it can be either saturated liquid, saturated vapor, or a saturated mixture. To resolve this, you would need more information, like the macroscopic density of the mixture.

Chet
 

Related to How to Identify the Phase of Steam Using a Thermodynamics Table?

What is a thermodynamics table?

A thermodynamics table is a table that displays the thermodynamic properties of a substance at different temperatures and pressures. It includes values such as specific heat, entropy, and enthalpy.

What are the units of measurement used in a thermodynamics table?

The units of measurement used in a thermodynamics table can vary depending on the specific table, but common units include joules (J) for energy, kelvin (K) for temperature, and pascals (Pa) for pressure.

How do I read a thermodynamics table?

To read a thermodynamics table, first identify the substance or material being studied. Then, find the desired temperature and pressure values on the table. Finally, read the corresponding values for the thermodynamic properties of the substance at those specific conditions.

What is the purpose of a thermodynamics table?

The purpose of a thermodynamics table is to provide a convenient and organized way to access and analyze the thermodynamic properties of a substance. It is commonly used in scientific and engineering fields for calculations and analysis.

Can a thermodynamics table be used for all substances?

No, a thermodynamics table is specific to a particular substance or material. Different substances have different thermodynamic properties, so each substance will have its own unique table.

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