1. What is Charles' Law?

Charles' Law states that the volume of an ideal gas is directly proportional to its absolute temperature when pressure is held constant. It's a fundamental gas law that helps predict how gases will behave when heated or cooled.

2. How Does the Calculator Work?

The calculator uses Charles' 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 that as temperature increases, volume increases proportionally when pressure remains constant.

3. Importance of Charles' Law

Details: Charles' Law is crucial in thermodynamics, engineering, and various scientific applications. It helps predict gas behavior in weather balloons, hot air balloons, and many industrial processes.

4. Using the Calculator

Tips: Enter initial volume in liters, temperatures in Kelvin. All values must be positive numbers. Temperature must be in absolute scale (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. Using Kelvin ensures proportional relationships in gas laws.

Q2: What are the assumptions of Charles' Law?
A: It assumes ideal gas behavior, constant pressure, and a closed system with constant amount of gas.

Q3: Does Charles' Law apply to real gases?
A: It applies approximately to real gases at high temperatures and low pressures where they behave like ideal gases.

Q4: How does this relate to absolute zero?
A: Charles' Law predicts that at absolute zero (0 K), gas volume would theoretically be zero, though gases liquefy before reaching this point.

Q5: What's the difference between Charles' Law and Boyle's Law?
A: Charles' Law relates volume and temperature at constant pressure, while Boyle's Law relates volume and pressure at constant temperature.