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Charles Law Calculator

Charles Law Calculator is a online tool used for finding the ideal gas parameters in a isobaric process. All you have to do is enter the necessary inputs as per the input section of the tool and tap on the calculate button to get output i.e. final pressure or volume in no time.

Given
Temperature T1 (Initial)
Volume V2 (Final)
Temperature T2 (Final)

Charles Law Calculator: Do you want to learn what is meant by Charle's Law and how to find final Volume or Temperature? Then, look no further make the most out of the handy Charles Law Calculator and get the output in a fraction of seconds. By the end of this article, we are sure you will get an idea on How to Solve Thermodynamic Problems by referring to the worked out examples on Charle's Law. Read on to know about Charle's Law Definition, Formula, Derivation explained step by step for your convenience.

Charle's Law Definition

Charle's Law also known as Law of Volumes denotes the relationship between volume and temperature when the mass, pressure of a gas are constant. Charles Law States that Volume and Temperature are directly proportional to each other.

In other words, we can frame the Charles Law Definition as Ratio of Volume and Temperature of a Gas in a closed system remains constant as long as the pressure is not changed. It denotes the behavior of an ideal gas in an isobaric process which indicates the pressure remains constant all through out this transition.

Charle's Law Formula

As per the definition of Charles Law we can write the equation as V₁ / T₁ = V₂ / T₂ where V₁ and T₁ are the intial volume and temperatures and V₂, T₂ are the final values.

Charles Law 1

Let say you want to determine the final volume then the Charles Law Equation becomes V₂ = V₁ / T₁ * T₂. On the other hand, if you want to set the final volume and estimate the temperature then rearranging the charles law formula we have T₂ = T₁ / V₁ * V₂

Charles Law 2

Charle's Law Derivation

As per Charles Law at Constant Pressure Volume of a gas is directly proportional to the Temperature. We can denote the statement as V∝T. We can remove the proportionality symbol and equate by placing a constant k i.e. V/T = Constant = k. The Constant k depends on the pressure of the gas as well as amount, units of volume, etc.

If we assume V₁ and T₁ as the initial volume and temperature at a constant pressure then the equation above can be written as V₁ / T₁ = k..... (1)

After a change in temperature its volume becomes V₂ along with temperature T₂. We can write the equation as V₂ / T₂ = k...... (2)

Equating both the equations we get V₁ / T₁ = V₂ / T₂ or V₁T₂ = V₂T₁

Charles Law Examples

A sample of gas has an initial volume of 35L and an initial temperature of -45°C. What will be the temperature of the gas if the volume is 25L?

Solution:

Given that

Initial Volume (V₁) = 35L

Initial Temperature (T₁) = -45°C

Final Volume(V₂) = 25L

Final Temperature (T₂) =?

As per the Charles Law T₂ = T₁ / V₁ * V₂

Substituting the known parameters in the equation we get the unknown parameter as T₂ = -45°C/35*25 = -110.19°C

Physicscalc.Com has got concepts like friction, acceleration due to gravity, water pressure, gravity, and many more along with their relevant calculators all one under one roof.

Charles Law Graph

Graph between Volume and Temperature at Constant Pressure is known as Isobar or Isoplestics and it always yields a straight line. A Plot of V Versus T at constant pressure is shown below for the temperature – 273.15°C and it is the lowest possible temperature.

Graphical Representation of Charles Law

Real Life Examples of Charles Law | Charle's Law Applications

There are various applications for Charles Law and we have compiled the most popular ones in the below sections.

  • Balloon Flight: Have you ever seen a balloon fly in the sky and wondered how does it fly? It is because of Charles Law i.e. Whenever the air gets heated volume increases and density decreases. Bouyancy of Surrounding does the rest of the job for you and balloon begins to float.
  • Liquid Nitrogen Experiments: If you place a balloon in a container filled with liquid nitrogen then it begins to shrink and freed no matter how it is at the initial stage. Later on, it gets back to its original stage after a temperature change and so is the volume.
  • Thermometer: Thermometer is a device constructed based on the principle of Charle's Law. However, it has certain limitations like resistance to high temperatures, objects tensile strength, etc.

FAQs on Charles Law Calculator

1. What does Charles Law State?

Charles Law States that Volume of a Gas for fixed mass is directly proportional to temperature.


2. What are the Applications of Charles Law?

Charles Law is used in the areas of Balloon Flight, Liqid Nitrogen Experiments, Thermometer, several thermodynamic processes, etc.


3. What is the Formula for Charles Law?

Formula for Charles Law is given by the expression V₁ / T₁ = V₂ / T₂


4. How to use the Charles Law Calculator?

Simply enter the initial volume, temperature and final volume or temperature and hit the calculate button to find out the other unknown parameter in the charles equation quite simply.


Charles Law Calculator