What is the law of gaseous volume class 11

Question: What is the law of gaseous volume class 11?

There are two main laws of gaseous volume that are typically covered in class 11 chemistry:

Gay-Lussac's Law

• Gay-Lussac's law states that the volume of a gas is directly proportional to its temperature, at a constant pressure.This means that as the temperature of a gas increases, its volume also increases.

• Mathematically, Gay-Lussac's law can be expressed as:

V ∝ T

where:

• V is the volume of the gas

• T is the temperature of the gas (in Kelvin)

• Gay-Lussac's law can be used to predict the volume of a gas at a different temperature, given its volume at a known temperature. For example, if a gas has a volume of 100 liters at 273 K (0°C), then its volume at 373 K (100°C) would be 136 liters.

Charles's Law

• Charles's law states that the volume of a gas is inversely proportional to its pressure, at a constant temperature. This means that as the pressure of a gas increases, its volume decreases.

• Mathematically, Charles's law can be expressed as:

V ∝ 1/P

where:

• V is the volume of the gas

• P is the pressure of the gas (in atmospheres)

• Charles's law can be used to predict the volume of a gas at a different pressure, given its volume at a known pressure. For example, if a gas has a volume of 100 liters at 1 atmosphere, then its volume at 2 atmospheres would be 50 liters.

Combined Gas Law

• The combined gas law is a combination of Gay-Lussac's law and Charles's law. It states that the volume of a gas is directly proportional to its temperature and inversely proportional to its pressure.

• Mathematically, the combined gas law can be expressed as:

V = kTP

where:

• V is the volume of the gas

• k is a constant

• T is the temperature of the gas (in Kelvin)

• P is the pressure of the gas (in atmospheres)

• The combined gas law can be used to solve problems involving all three variables: volume, temperature, and pressure.

Applications of Gas Laws

• The gas laws are used in a variety of applications, including:

• Weather forecasting

• Hot air balloons

• Scuba diving

• Refrigeration

• Automobile engines

Conclusion

• The gas laws are fundamental principles of chemistry that help us to understand the behavior of gases. They have a wide range of applications in both science and engineering.

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