Combined Gas Laws

 

Combined Gas Laws 

Boyle/Charles/Gay Lussac

The Combined Gas Law is a gas law that combines three fundamental gas relationships: Boyle’s Law, Charles’s Law, and Gay-Lussac’s Law. It describes the relationship between pressure (P), volume (V), and temperature (T) of a fixed amount of gas.

Formula:

$$\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}$$

Ratio Of Pressure And Volume To The Absolute Temperature Of Gas Is Constant

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Applications:

• Predicting how gases behave under changing conditions of pressure, volume, and temperature.

• Scuba diving (changes in gas volume and pressure with depth).

• Weather balloons (expansion of gas with altitude).

• Gas cylinders and aerosol cans (pressure changes with temperature).

                                             Weather Balloon  = Combined Gas Law 

Weather balloons evolved from 18th-century hot air experiments to 19th-century scientific launches, leading to the discovery of the stratosphere, and became indispensable with the invention of the radiosonde in the 1930s. They remain a backbone of global weather observation today.

                                                               Global Weather Observation

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