Entropy Change at Constant Pressure Calculator

✖Heat capacity constant pressure is the amount of heat energy absorbed/released per unit mass of a substance where the pressure does not change.ⓘ Heat Capacity Constant Pressure [C_p]			+10% -10%
✖Temperature of Surface 2 is the temperature of the 2nd surface.ⓘ Temperature of Surface 2 [T₂]			+10% -10%
✖Temperature of Surface 1 is the temperature of the 1st surface.ⓘ Temperature of Surface 1 [T₁]			+10% -10%
✖Pressure 2 is the pressure at give point 2.ⓘ Pressure 2 [P₂]			+10% -10%
✖Pressure 1 is the pressure at give point 1.ⓘ Pressure 1 [P₁]			+10% -10%

✖Entropy change constant pressure is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work.ⓘ Entropy Change at Constant Pressure [δs_pres]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Entropy Generation Formulas PDF PDF Image

Entropy Change at Constant Pressure Solution

STEP 0: Pre-Calculation Summary

Formula Used

Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1)
δs_pres = C_p*ln(T₂/T₁)-[R]*ln(P₂/P₁)
This formula uses 1 Constants, 1 Functions, 6 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Functions Used

ln - The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function., ln(Number)

Variables Used

Entropy Change Constant Pressure - (Measured in Joule per Kilogram K) - Entropy change constant pressure is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work.
Heat Capacity Constant Pressure - (Measured in Joule per Kilogram per K) - Heat capacity constant pressure is the amount of heat energy absorbed/released per unit mass of a substance where the pressure does not change.
Temperature of Surface 2 - (Measured in Kelvin) - Temperature of Surface 2 is the temperature of the 2nd surface.
Temperature of Surface 1 - (Measured in Kelvin) - Temperature of Surface 1 is the temperature of the 1st surface.
Pressure 2 - (Measured in Pascal) - Pressure 2 is the pressure at give point 2.
Pressure 1 - (Measured in Pascal) - Pressure 1 is the pressure at give point 1.

STEP 1: Convert Input(s) to Base Unit

Heat Capacity Constant Pressure: 1001 Joule per Kilogram per K --> 1001 Joule per Kilogram per K No Conversion Required
Temperature of Surface 2: 151 Kelvin --> 151 Kelvin No Conversion Required
Temperature of Surface 1: 101 Kelvin --> 101 Kelvin No Conversion Required
Pressure 2: 520000 Pascal --> 520000 Pascal No Conversion Required
Pressure 1: 250000 Pascal --> 250000 Pascal No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

δs_pres = C_p*ln(T₂/T₁)-[R]*ln(P₂/P₁) --> 1001*ln(151/101)-[R]*ln(520000/250000)

Evaluating ... ...

δs_pres = 396.472233818624

STEP 3: Convert Result to Output's Unit

396.472233818624 Joule per Kilogram K --> No Conversion Required

FINAL ANSWER

396.472233818624 ≈ 396.4722 Joule per Kilogram K <-- Entropy Change Constant Pressure

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Mechanical » Thermodynamics » Entropy Generation » Entropy Change at Constant Pressure

Credits

Created by Suman Ray Pramanik

Indian Institute of Technology (IIT), Kanpur

Suman Ray Pramanik has created this Calculator and 50+ more calculators!

Verified by Team Softusvista

Softusvista Office (Pune), India

Team Softusvista has verified this Calculator and 1100+ more calculators!

< Entropy Generation Calculators

Entropy Change at Constant Volume

LaTeX Go Entropy Change Constant Volume = Heat Capacity Constant Volume*ln(Temperature of Surface 2/Temperature of Surface 1)+[R]*ln(Specific Volume at Point 2/Specific Volume at Point 1)

Entropy Change at Constant Pressure

LaTeX Go Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1)

Entropy Change Variable Specific Heat

LaTeX Go Entropy Change Variable Specific Heat = Standard Molar Entropy at Point 2-Standard Molar Entropy at Point 1-[R]*ln(Pressure 2/Pressure 1)

Entropy Balance Equation

LaTeX Go Entropy Change Variable Specific Heat = Entropy of System-Entropy of Surrounding+Total Entropy Generation

Entropy Change at Constant Pressure Formula

LaTeX Go

Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1)
δs_pres = C_p*ln(T₂/T₁)-[R]*ln(P₂/P₁)

What is Entropy change at constant volume?

Entropy change constant volume is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. It is a state function and hence depends on the path taken by the system. Entropy is a measure of randomness.

How to Calculate Entropy Change at Constant Pressure?

Entropy Change at Constant Pressure calculator uses Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1) to calculate the Entropy Change Constant Pressure, Entropy Change at Constant Pressure formula is defined as a measure of the change in entropy of a system when it undergoes a process at constant pressure, reflecting the relationship between temperature and pressure variations. Entropy Change Constant Pressure is denoted by δs_pres symbol.

How to calculate Entropy Change at Constant Pressure using this online calculator? To use this online calculator for Entropy Change at Constant Pressure, enter Heat Capacity Constant Pressure (C_p), Temperature of Surface 2 (T₂), Temperature of Surface 1 (T₁), Pressure 2 (P₂) & Pressure 1 (P₁) and hit the calculate button. Here is how the Entropy Change at Constant Pressure calculation can be explained with given input values -> 396.4722 = 1001*ln(151/101)-[R]*ln(520000/250000).

FAQ

What is Entropy Change at Constant Pressure?

Entropy Change at Constant Pressure formula is defined as a measure of the change in entropy of a system when it undergoes a process at constant pressure, reflecting the relationship between temperature and pressure variations and is represented as δs_pres = C_p*ln(T₂/T₁)-[R]*ln(P₂/P₁) or Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1). Heat capacity constant pressure is the amount of heat energy absorbed/released per unit mass of a substance where the pressure does not change, Temperature of Surface 2 is the temperature of the 2nd surface, Temperature of Surface 1 is the temperature of the 1st surface, Pressure 2 is the pressure at give point 2 & Pressure 1 is the pressure at give point 1.

How to calculate Entropy Change at Constant Pressure?

Entropy Change at Constant Pressure formula is defined as a measure of the change in entropy of a system when it undergoes a process at constant pressure, reflecting the relationship between temperature and pressure variations is calculated using Entropy Change Constant Pressure = Heat Capacity Constant Pressure*ln(Temperature of Surface 2/Temperature of Surface 1)-[R]*ln(Pressure 2/Pressure 1). To calculate Entropy Change at Constant Pressure, you need Heat Capacity Constant Pressure (C_p), Temperature of Surface 2 (T₂), Temperature of Surface 1 (T₁), Pressure 2 (P₂) & Pressure 1 (P₁). With our tool, you need to enter the respective value for Heat Capacity Constant Pressure, Temperature of Surface 2, Temperature of Surface 1, Pressure 2 & Pressure 1 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 Entropy Change Constant Pressure?

In this formula, Entropy Change Constant Pressure uses Heat Capacity Constant Pressure, Temperature of Surface 2, Temperature of Surface 1, Pressure 2 & Pressure 1. We can use 2 other way(s) to calculate the same, which is/are as follows -

Entropy Change Constant Pressure = Mass of Gas*Molar Specific Heat Capacity at Constant Pressure*ln(Final Temperature/Initial Temperature)
Entropy Change Constant Pressure = Mass of Gas*Molar Specific Heat Capacity at Constant Pressure*ln(Final Volume of System/Initial Volume of System)

Home

FREE PDFs

🔍 Search