1. What is Charles Law Formula?

Charles Law describes how gases tend to expand when heated. It states that the volume of a given amount of gas is directly proportional to its temperature on the absolute temperature scale (Kelvin) if pressure remains constant.

2. How Does the Calculator Work?

The calculator uses the Charles Law formula:

Where:

• \( V_1 \) — Initial volume (m³)
• \( V_2 \) — Final volume (m³)
• \( T_1 \) — Initial temperature (K)
• \( T_2 \) — Final temperature (K)

Explanation: The formula calculates the new volume of a gas when temperature changes at constant pressure.

3. Importance of Charles Law

Details: Charles Law is fundamental in thermodynamics and has practical applications in various fields including meteorology, engineering, and the study of gas behavior.

4. Using the Calculator

Tips: Enter initial volume in m³, initial and final temperatures in Kelvin. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why must temperature be in Kelvin?
A: Kelvin is an absolute temperature scale where 0K represents absolute zero, making it appropriate for gas law calculations.

Q2: Does Charles Law apply to all gases?
A: Charles Law applies best to ideal gases under constant pressure conditions. Real gases show deviations at extreme conditions.

Q3: What are typical applications of Charles Law?
A: Applications include hot air balloons, gas thermometers, and understanding atmospheric phenomena.

Q4: How does pressure affect this calculation?
A: Charles Law assumes constant pressure. If pressure changes, other gas laws like the Combined Gas Law should be used.

Q5: Can I use Celsius instead of Kelvin?
A: No, you must convert Celsius to Kelvin by adding 273.15 before using this calculator.