How to Calculate and Solve for Entropy of Water | Enthalpy
Last Updated on April 23, 2024
The entropy of water is illustrated by the image above. To calculate entropy of water, two essential parameters are needed and these parameters are Constant Pressure (Cpw) and Temprature (T).
The formula for calculating entropy of water:
Sp = Cpw ln(T / 273)
Where:
Sp = Entropy of Water
Cpw = Constant Pressure
T = Temprature
Let’s solve an example;
Find the entropy of water when the constant pressure is 40 and the temperature is 10.
This implies that;
Cpw = Constant Pressure = 40
T = Temprature = 10
Sp = Cpw ln(T / 273)
Sp = 40 x ln(10 / 273)
Then, Sp = 40 x ln(0.0366)
Sp = 40 x -3.306
Sp = -132.27
Therefore, the entropy of water is -132.27 J/K.
Read more: How to Calculate and Solve for Entropy of Wet Steam | Enthalpy
How to Calculate Entropy of Water Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the entropy of water.
To get the answer and workings of the entropy of water using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Chemical Reaction Thermodynamics under Materials and Metallurgical
Now, Click on Enthalpy under Chemical Reaction Thermodynamics
Then, Click on Entropy of Water under Enthalpy
The screenshot below displays the page or activity to enter your values, to get the answer for the entropy of water according to the respective parameter which is the Constant Pressure (Cpw) and Temprature (T).
Now, enter the values appropriately and accordingly for the parameters as required by the Constant Pressure (Cpw) and Temprature (T).
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the entropy of water and presents the formula, workings and steps too.
