Boyles And Charles Law Calculator

Combined Gas Law:

\[ \frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2} \]

P1 (Pa):

V1 (m³):

m³

T1 (K):

P2 (Pa):

V2 (m³):

m³

T2 (K):

Calculated Result:

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1. What is Boyle's and Charles' Law?

The Combined Gas Law combines Boyle's Law (pressure-volume relationship), Charles' Law (volume-temperature relationship), and Gay-Lussac's Law (pressure-temperature relationship) into a single equation that describes the relationship between pressure, volume, and temperature of a gas.

2. How Does the Calculator Work?

The calculator uses the Combined Gas Law equation:

\[ \frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2} \]

Where:

\( P_1 \) — Initial pressure (Pascals)
\( V_1 \) — Initial volume (cubic meters)
\( T_1 \) — Initial temperature (Kelvin)
\( P_2 \) — Final pressure (Pascals)
\( V_2 \) — Final volume (cubic meters)
\( T_2 \) — Final temperature (Kelvin)

Explanation: The equation states that the ratio of the product of pressure and volume to temperature remains constant for a given amount of gas.

3. Importance of Combined Gas Law

Details: This law is fundamental in thermodynamics and gas calculations, helping predict how gases will behave under different conditions of pressure, volume, and temperature.

4. Using the Calculator

Tips: Enter known values for five variables and leave one variable empty to calculate. All values must be positive and in correct units (Pa for pressure, m³ for volume, K for temperature).

5. Frequently Asked Questions (FAQ)

Q1: What are the units required for this calculator?
A: Pressure in Pascals (Pa), volume in cubic meters (m³), and temperature in Kelvin (K).

Q2: 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.

Q3: Can I use other pressure units?
A: You must convert all pressure values to Pascals before using this calculator for accurate results.

Q4: What if I need to calculate multiple variables?
A: This calculator can only solve for one unknown variable at a time. You need to perform multiple calculations if more variables are unknown.

Q5: Are there any limitations to this law?
A: The Combined Gas Law assumes ideal gas behavior and constant amount of gas. It may not be accurate for real gases under extreme conditions.