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# Gay-Lussac

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## Heather McCully

on 10 September 2013

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#### Transcript of Gay-Lussac

GAY- LUSSAC'S LAW
Gay-Lussac Life
An example of Gay Lussac's law in everyday life would be if you were to leave an aerosol can out in the sun for a long period of time. The pressure in the can would build, and it would eventually explode because the gases have nowhere to go.
What were some of gay lusaccs
accomplisments.
Gay Lussac's Law and its variables
P1=starting pressure
P2 = ending pressure
T1= starting temp.
T2= ending temp.
Sample Problem
How it can be observed in everyday life
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BASIC INFORMATION
He was married to Geneviève-Marie-Joseph Rojot in 1809. Together they had five kids.
Gay Lussac was born December 6, 1778 in Saint-Léonard-de-Noblat, France. He died on May 9, 1850 in Paris France
Example
1802 – Gay-Lussac first formulated the law, Gay-Lussac's Law
1804 – He and Jean-Baptiste Biot made a hot-air balloon went up 23,000 feet
1808 – He helped discoverer of boron

A 20 L cylinder containing 6 atm of gas at 27 °C. What would the pressure of the gas be if the gas was heated to 77 °C?

The cylinder's volume stays the same while the gas is heated Gay-Lussac's gas law can be expressed as

Pi/Ti = Pf/Tf

where
Pi and Ti are the initial pressure and absolute temperatures
Pf and Tf are the final pressure and absolute temperature

Step Three
Use these values in Gay-Lussac's equation and solve for Pf.

Pf = PiTf/Ti
Pf = (6 atm)x(350K)/(300 K)
Pf = 7 atm

First, convert the temperatures to absolute temperatures.

Ti = 27 °C = 27 + 273 K = 300 K
Tf = 77 °C = 77 + 273 K = 350 K
The pressure will increase to 7 atm after heating the gas from 27 °C to 77 °C.
Step One
Step Two
Graph
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