potassium oxide Thermodynamic Properties vs Temperature (CAS 12136-45-7)

Analyze how thermophysical properties change over a temperature range at a constant pressure of 1 atm.

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Property Profile for potassium oxide

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of potassium oxide at 1.01325 bar over -23.15–226.85 °C
Temperature (°C)Specific heat capacity (kJ/kg·K)Density (kg/m³)Dynamic viscosity (cP)Thermal conductivity (W/m·K)Prandtl number ()Molar volume (m³/kmol)Specific enthalpy (kJ)Specific entropy (kJ/kg·K)Phase
-23.150.8079712350N/A N/A N/A 0.0400834-40.8297-0.149151s
-18.0480.8164482350N/A N/A N/A 0.0400834-36.6858-0.132743s
-12.94590.8249242350N/A N/A N/A 0.0400834-32.4986-0.116491s
-7.843880.8334012350N/A N/A N/A 0.0400834-28.2682-0.100391s
-2.741840.8418782350N/A N/A N/A 0.0400834-23.9946-0.0844354s
2.36020.8503542350N/A N/A N/A 0.0400834-19.6776-0.0686199s
7.462240.8588312350N/A N/A N/A 0.0400834-15.3175-0.0529391s
12.56430.8673082350N/A N/A N/A 0.0400834-10.9141-0.0373881s
17.66630.8757842350N/A N/A N/A 0.0400834-6.46739-0.0219624s
22.76840.8842612350N/A N/A N/A 0.0400834-1.97748-0.00665744s
27.87040.8926142350N/A N/A N/A 0.04008342.555550.00853033s
32.97240.9003452350N/A N/A N/A 0.04008347.12970.0235983s
38.07450.9074512350N/A N/A N/A 0.040083411.74170.0385398s
43.17650.9139872350N/A N/A N/A 0.040083416.38840.0533491s
48.27860.922350N/A N/A N/A 0.040083421.06720.0680219s
53.38060.9255362350N/A N/A N/A 0.040083425.77540.0825544s
58.48270.9306362350N/A N/A N/A 0.040083430.51070.0969441s
63.58470.9353382350N/A N/A N/A 0.040083435.2710.111189s
68.68670.9396762350N/A N/A N/A 0.040083440.05430.125287s
73.78880.9436842350N/A N/A N/A 0.040083444.8590.139239s
78.89080.947392350N/A N/A N/A 0.040083449.68320.153043s
83.99290.9508212350N/A N/A N/A 0.040083454.52570.166699s
89.09490.9540042350N/A N/A N/A 0.040083459.38510.180209s
94.19690.9569612350N/A N/A N/A 0.040083464.26010.193573s
99.2990.9597132350N/A N/A N/A 0.040083469.14960.206792s
104.4010.9622812350N/A N/A N/A 0.040083474.05280.219867s
109.5030.9646832350N/A N/A N/A 0.040083478.96850.2328s
114.6050.9669352350N/A N/A N/A 0.040083483.89620.245592s
119.7070.9690542350N/A N/A N/A 0.040083488.8350.258246s
124.8090.9710532350N/A N/A N/A 0.040083493.78430.270763s
129.9110.9729472350N/A N/A N/A 0.040083498.74350.283146s
135.0130.9747472350N/A N/A N/A 0.0400834103.7120.295396s
140.1150.9764662350N/A N/A N/A 0.0400834108.690.307515s
145.2170.9781132350N/A N/A N/A 0.0400834113.6760.319507s
150.3190.9796982350N/A N/A N/A 0.0400834118.670.331372s
155.4210.981232350N/A N/A N/A 0.0400834123.6730.343115s
160.5230.9827182350N/A N/A N/A 0.0400834128.6830.354736s
165.6260.9841692350N/A N/A N/A 0.0400834133.70.366238s
170.7280.9855912350N/A N/A N/A 0.0400834138.7250.377624s
175.830.9869892350N/A N/A N/A 0.0400834143.7580.388896s
180.9320.988372350N/A N/A N/A 0.0400834148.7970.400057s
186.0340.9897392350N/A N/A N/A 0.0400834153.8430.411108s
191.1360.9911022350N/A N/A N/A 0.0400834158.8960.422052s
196.2380.9924622350N/A N/A N/A 0.0400834163.9560.432891s
201.340.9938242350N/A N/A N/A 0.0400834169.0230.443628s
206.4420.9951912350N/A N/A N/A 0.0400834174.0970.454264s
211.5440.9965682350N/A N/A N/A 0.0400834179.1780.464803s
216.6460.9979572350N/A N/A N/A 0.0400834184.2660.475245s
221.7480.9993622350N/A N/A N/A 0.0400834189.3620.485594s
226.851.000782350N/A N/A N/A 0.0400834194.4640.495851s

Property Profiles for potassium oxide

Heat Capacity (Cp) vs Temperature

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Density vs Temperature

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Thermodynamic Property Profile at Constant Pressure

This page presents the temperature-dependent thermodynamic and transport properties of potassium oxide (CAS 12136-45-7) calculated at a constant pressure of 1 atm (101325 Pa) over the temperature range 250-500 K.

The properties shown - specific heat capacity (Cp), density (ρ), dynamic viscosity (μ), thermal conductivity (k), Prandtl number (Pr), molar volume (Vm), specific enthalpy (H), and specific entropy (S) - are among the most commonly used parameters in chemical engineering calculations, process simulation, and thermal system design.

All values are generated programmatically using validated thermodynamic correlations and equations of state and represent equilibrium properties at the specified pressure.


Understanding the Property Trends

  • Specific heat capacity (Cp) indicates the amount of energy required to raise the temperature of potassium oxide and is critical for energy balance and heat-exchanger design.
  • Density (ρ) and molar volume (Vm) describe volumetric behavior and are required for flow calculations, equipment sizing, and storage design.
  • Dynamic viscosity (μ) governs fluid flow resistance, influencing Reynolds number and pressure drop.
  • Thermal conductivity (k) and Prandtl number (Pr) are essential inputs for convective heat-transfer correlations.
  • Specific enthalpy (H) and specific entropy (S) are fundamental thermodynamic properties used in process modeling, compression, and expansion analysis.

Property trends with temperature may vary depending on molecular structure, intermolecular interactions, and phase stability.


Engineering Applications

The temperature-dependent properties of potassium oxide at atmospheric pressure are commonly required in:

  • Heat exchanger and reactor design
  • Process simulation and thermodynamic modeling
  • Fluid flow and pressure-drop calculations
  • Energy balance and equipment sizing
  • Chemical engineering education and research

These profiles are particularly useful when evaluating system performance over a wide operating temperature range under near-ambient pressure conditions.


Frequently Asked Questions

At what pressure are these properties calculated?
All properties on this page are calculated at a constant pressure of 1 atm (101325 Pa).

Can these values be used in process simulation software?
Yes. The data is suitable for preliminary design, validation, and educational use. For licensed simulators, vendor-specific property packages should be referenced.

Can I change the pressure or temperature range?
Yes. Use the interactive controls above to generate custom property profiles at different pressures or temperature ranges.


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