How to Calculate and Solve for Constant of Lorentz Number | Thermal Properties

The constant of lorentz number is illustrated by the image below. To calculate constant of lorentz number, three essential parameters are needed and these parameters are Thermal Conductivity (K), Electrical Conductivity (σ) and Absolute Temperature (T).

The formula for calculating the constant of lorentz number:

L = K/σT

Where:

L = Constant of Lorentz Number
K = Thermal Conductivity
σ = Electrical Conductivity
T = Absolute Temperature

Given an example;
Find the constant of lorentz number when the thermal conductivity is 44, the electrical conductivity is 11 and the absolute temperature is 2.

This implies that;

K = Thermal Conductivity = 44
σ = Electrical Conductivity = 11
T = Absolute Temperature = 2

L = K/σT
That is, L = 44/(11)(2)
L = 44/(22)
L = 2

Therefore, the constant of lorentz number is 2.

Calculating the Thermal Conductivity when the Constant of Lorentz Number, the Electrical Conductivity and the Absolute Temperature are Given

K = L (σT)

Where:

K = Thermal Conductivity
L = Constant of Lorentz Number
σ = Electrical Conductivity
T = Absolute Temperature

Let’s solve an example;
Find the thermal conductivity when the constant of lorentz number is 2, the electrical conductivity is 5 and the absolute temperature is 4.

This implies that;

Master Every Calculation Instantly

Unlock solutions for every math, physics, engineering, and chemistry problem with step-by-step clarity. No internet required. Just knowledge at your fingertips, anytime, anywhere.

L = Constant of Lorentz Number = 2
σ = Electrical Conductivity = 5
T = Absolute Temperature = 4

K = L (σT)
That is, K = 2 (5)(4)
K = 40

Therefore, the thermal conductivity is 40.

Read more: How to Calculate and Solve for Total Conductivity | Thermal Properties

Calculating the Electrical Conductivity when the Constant of Lorentz Number, the Thermal Conductivity and the Absolute Temperature are Given

σ = K / L.T

Where:

σ = Electrical Conductivity
L = Constant of Lorentz Number
K = Thermal Conductivity
T = Absolute Temperature

Let’s solve an example;
Find the electrical conductivity when the constant of lorentz number is 4, the thermal conductivity is 32 and the absolute temperature is 2.

This implies that;

L = Constant of Lorentz Number = 4
K = Thermal Conductivity = 32
T = Absolute Temperature = 2

σ = K / L.T
That is, σ = 32 / (4)(2)
σ = 32 / 8
σ = 4

Therefore, the electrical conductivity is 4.

Calculating the Absolute Temperature when the Constant of Lorentz Number, the Thermal Conductivity and the Electrical Conductivity are Given

T = K / L.σ

Where:

T = Absolute Temperature
L = Constant of Lorentz Number
K = Thermal Conductivity
σ = Electrical Conductivity

Let’s solve an example;
Find the absolute temperature when the constant of lorentz number is 5, the thermal conductivity is 60 and the electrical conductivity is 2.

This implies that;

L = Constant of Lorentz Number = 5
K = Thermal Conductivity = 60
σ = Electrical Conductivity = 2

T = K / L.σ
So, T = 60 / (5)(2)
T = 60 / 10
T = 6

Therefore, the absolute temperature is 6.

How to Calculate Constant of Lorentz Number With Nickzom Calculator

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the constant of lorentz number.

To get the answer and workings of the constant of lorentz number 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 Thermal Properities under Materials and Metallurgical

Now, Click on Constant of Lorentz Number under Thermal Properities

The screenshot below displays the page or activity to enter your values, to get the answer for the constant of lorentz number according to the respective parameter which is the Thermal Conductivity (K), Electrical Conductivity (σ) and Absolute Temperature (T).

How to Calculate and Solve for Constant of Lorentz Number | Thermal Properties

Now, enter the values appropriately and accordingly for the parameters as required by the Thermal Conductivity (K) is 44, Electrical Conductivity (σ) is 11 and Absolute Temperature (T) is 2.

How to Calculate and Solve for Constant of Lorentz Number | Thermal Properties

Finally, Click on Calculate

How to Calculate and Solve for Constant of Lorentz Number | Thermal Properties

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the constant of lorentz number and presents the formula, workings and steps too.

Leave a Reply