Critical Compressibility Calculator

✖Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature.ⓘ Critical Pressure [P_c]			+10% -10%
✖The Critical Volume is the volume occupied by the unit mass of gas at critical temperature and pressure.ⓘ Critical Volume [V_cr]			+10% -10%
✖The Specific Gas Constant of a gas or a mixture of gases is given by the molar gas constant divided by the molar mass of the gas or mixture.ⓘ Specific Gas Constant [R]			+10% -10%
✖Critical Temperature is the highest temperature at which the substance can exist as a liquid. At this phase boundaries vanish, and the substance can exist both as a liquid and vapor.ⓘ Critical Temperature [T_c]			+10% -10%

✖Compressibility factor is the factor of correction that describes the deviation of the real gas from the ideal gas.ⓘ Critical Compressibility [z]

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Formula

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Critical Compressibility

Formula

`"z" = ("P"_{"c"}*"V"_{"cr"}*10^(-3))/("R"*"T"_{"c"})`

Example

`"5.648447"=("33500000Pa"*"6L"*10^(-3))/("0.055J/(kg*K)"*"647K")`

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Critical Compressibility Solution

STEP 0: Pre-Calculation Summary

Formula Used

Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature)
z = (P_c*V_cr*10^(-3))/(R*T_c)
This formula uses 5 Variables

Variables Used

Compressibility Factor - Compressibility factor is the factor of correction that describes the deviation of the real gas from the ideal gas.
Critical Pressure - (Measured in Pascal) - Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature.
Critical Volume - (Measured in Cubic Meter) - The Critical Volume is the volume occupied by the unit mass of gas at critical temperature and pressure.
Specific Gas Constant - (Measured in Joule per Kilogram per K) - The Specific Gas Constant of a gas or a mixture of gases is given by the molar gas constant divided by the molar mass of the gas or mixture.
Critical Temperature - (Measured in Kelvin) - Critical Temperature is the highest temperature at which the substance can exist as a liquid. At this phase boundaries vanish, and the substance can exist both as a liquid and vapor.

STEP 1: Convert Input(s) to Base Unit

Critical Pressure: 33500000 Pascal --> 33500000 Pascal No Conversion Required
Critical Volume: 6 Liter --> 0.006 Cubic Meter (Check conversion here)
Specific Gas Constant: 0.055 Joule per Kilogram per K --> 0.055 Joule per Kilogram per K No Conversion Required
Critical Temperature: 647 Kelvin --> 647 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

z = (P_c*V_cr*10^(-3))/(R*T_c) --> (33500000*0.006*10^(-3))/(0.055*647)

Evaluating ... ...

z = 5.64844737951384

STEP 3: Convert Result to Output's Unit

5.64844737951384 --> No Conversion Required

FINAL ANSWER

5.64844737951384 ≈ 5.648447 <-- Compressibility Factor

(Calculation completed in 00.004 seconds)

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Created by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

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National Institute Of Technology (NIT), Hamirpur

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< 8 Pressure Relations Calculators

Relative Humidity

Go Relative Humidity = Specific Humidity*Partial Pressure/((0.622+Specific Humidity)*Vapor Pressure of Pure Component A)

Critical Compressibility

Go Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature)

Pseudo-Reduced Specific Volume

Go Pseudo Reduced Specific Volume = Specific Volume*Critical Pressure/([R]*Critical Temperature)

Compressibility Factor

Go Compressibility Factor = (Pressure Object*Specific Volume)/(Specific Gas Constant*Temperature)

Partial Pressure of Water Vapour

Go Partial Pressure = Pressure of Gas*1.8*Atmospheric Pressure*Temperature Difference/2700

Pressure

Go Pressure = 1/3*Density of Gas*Root Mean Square Velocity^2

Reduced Pressure

Go Reduced Pressure = Pressure/Critical Pressure

Mean Effective Pressure

Go Mean Effective Pressure = Work/Displacement

Critical Compressibility Formula

Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature)
z = (P_c*V_cr*10^(-3))/(R*T_c)

What do you mean by Reduced Properties?

A fluid’s state properties at its critical point are called reduced properties. Reduced properties are also used to define the Peng–Robinson equation of state, a model designed to provide reasonable accuracy near the critical point.

How to Calculate Critical Compressibility?

Critical Compressibility calculator uses Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature) to calculate the Compressibility Factor, The Critical Compressibility formula is defined as the component compressibility factor calculated at its critical point by using the component's critical properties. Compressibility Factor is denoted by z symbol.

How to calculate Critical Compressibility using this online calculator? To use this online calculator for Critical Compressibility, enter Critical Pressure (P_c), Critical Volume (V_cr), Specific Gas Constant (R) & Critical Temperature (T_c) and hit the calculate button. Here is how the Critical Compressibility calculation can be explained with given input values -> 0.001086 = (33500000*0.006*10^(-3))/(0.055*647).

FAQ

What is Critical Compressibility?

The Critical Compressibility formula is defined as the component compressibility factor calculated at its critical point by using the component's critical properties and is represented as z = (P_c*V_cr*10^(-3))/(R*T_c) or Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature). Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature, The Critical Volume is the volume occupied by the unit mass of gas at critical temperature and pressure, The Specific Gas Constant of a gas or a mixture of gases is given by the molar gas constant divided by the molar mass of the gas or mixture & Critical Temperature is the highest temperature at which the substance can exist as a liquid. At this phase boundaries vanish, and the substance can exist both as a liquid and vapor.

How to calculate Critical Compressibility?

The Critical Compressibility formula is defined as the component compressibility factor calculated at its critical point by using the component's critical properties is calculated using Compressibility Factor = (Critical Pressure*Critical Volume*10^(-3))/(Specific Gas Constant*Critical Temperature). To calculate Critical Compressibility, you need Critical Pressure (P_c), Critical Volume (V_cr), Specific Gas Constant (R) & Critical Temperature (T_c). With our tool, you need to enter the respective value for Critical Pressure, Critical Volume, Specific Gas Constant & Critical Temperature and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Compressibility Factor?

In this formula, Compressibility Factor uses Critical Pressure, Critical Volume, Specific Gas Constant & Critical Temperature. We can use 1 other way(s) to calculate the same, which is/are as follows -

Compressibility Factor = (Pressure Object*Specific Volume)/(Specific Gas Constant*Temperature)

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