1. What is Charles's Law?

Charles's Law states that the volume of a given amount of gas is directly proportional to its temperature on the absolute temperature scale (Kelvin) if pressure and amount of gas remain constant.

2. How Does the Calculator Work?

The calculator uses Charles's Law equation:

Where:

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

Explanation: The equation shows the direct proportionality between volume and absolute temperature for an ideal gas at constant pressure.

3. Importance of Volume-Temperature Calculations

Details: Understanding gas behavior under temperature changes is crucial in chemistry, physics, engineering, and various industrial applications.

4. Using the Calculator

Tips: Enter all three known values (V1, T1, T2) in appropriate units. All values must be positive numbers. Temperature must be in Kelvin.

5. Frequently Asked Questions (FAQ)

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

Q2: What are the limitations of Charles's Law?
A: It applies only to ideal gases at constant pressure. Real gases deviate from this behavior at high pressures or low temperatures.

Q3: How do I convert Celsius to Kelvin?
A: K = °C + 273.15. Always use Kelvin in these calculations.

Q4: What if pressure changes?
A: This calculator assumes constant pressure. For changing pressure, you would need the combined gas law.

Q5: Can I use this for liquids?
A: No, Charles's Law applies only to gases. Liquid expansion follows different principles.