Gay-Lussac's Law

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Gay-Lussac's Law is a gas law that represents pressure and temperature relationships. Gay-Lussac's Law can written as K=P/T In Gay-Lussac's Law volume remains constant. The formula for Gay-Lussac's  law is

P₁ /T₁=P₂ /T₂ The temperature used to solve Gay-Lussac's Law should be in Kelvin. The formula for Kelvin is K= C + 273.15.

Example Problem:

A seal can has a 1 atm at 20 K. The can is then heated to 200 K, what is the new pressure in atm?

P₁= 1 atm

T₁= 20 K

P₂= ?

T₂= 200 K

You take Gay-Lussac's Law P_{1 /}T₁=P_{2 /}T₂ and rearrange the variables to fit the new formula for the variable that needs to be solved.

P₁ T₂=P₂ T₁

P₂=P₁ T_{2 /} T₁

P₂= _{1atm ( 200K ) / 20 K}

P₂= 10 atm