1. What is Avogadro's Law?

Avogadro's Law states that equal volumes of all gases, at the same temperature and pressure, have the same number of molecules. This means that the volume of a gas is directly proportional to the number of moles of gas present.

2. How Does the Calculator Work?

The calculator uses the Avogadro's Law formula:

Where:

• \( n_2 \) — Final moles of gas (mol)
• \( V_f \) — Final volume of gas (m³)
• \( V_i \) — Initial volume of gas (m³)
• \( n_1 \) — Initial moles of gas (mol)

Explanation: The formula calculates the final number of moles of gas when the volume changes, assuming constant temperature and pressure.

3. Importance of Avogadro's Law

Details: Avogadro's Law is fundamental in gas stoichiometry and helps in understanding the relationship between the amount of gas and its volume under constant temperature and pressure conditions.

4. Using the Calculator

Tips: Enter all values in the appropriate units (m³ for volume, mol for moles). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the assumptions of Avogadro's Law?
A: Avogadro's Law assumes ideal gas behavior, constant temperature, and constant pressure.

Q2: Can Avogadro's Law be applied to real gases?
A: It works well for ideal gases and reasonably well for real gases at moderate temperatures and pressures.

Q3: What is the relationship between volume and moles in Avogadro's Law?
A: Volume is directly proportional to the number of moles when temperature and pressure are constant.

Q4: How does temperature affect Avogadro's Law?
A: Avogadro's Law requires constant temperature. Changing temperature would require using the combined gas law.

Q5: What are typical units used with Avogadro's Law?
A: Volume is typically measured in liters or cubic meters, and moles are measured in mol.