Charles's+Law.Bertino

=Charles's Law= Charles's Law was first published in 1802 by James Gay- Lussac. Its credit was later given to Jacques Charles, and then forth named after him, because he had made the initial discovery in 1787. He found this idea when he watched a gas while it was heated.

Charles Law states that the as the temperature of a gas increases or decreases the volume will also increase or decrease proportionally. This is caused because in Charles law the pressure remains constant, and as the temperature increases the molecules to move faster and harder which cause the pressure to increase, but since the pressure must stay constant then volume increases respectively.

The law is written as: where: V= volume T= temperature (Kelvin) k= constant

To use this problem in an equation one must use one of the three equations(all are the same just written out differently to help) V1 and T1 represents the initial volume and temperature and V2 and T2 represents a different set of volume and temperature.

A sample of Nitrogen gas takes up 450 mL of volume at 15 degrees celcius. How much volume will it take up at 40 degrees celcius? -Fist you have to remember that in all equations involving temperature, the temperature must be in degrees Kelvin not Celsius. you can change these into kelvin by adding the degrees C with 273 therefore: 40 degrees C would become 313 degrees K and 15 degrees C would become 288 degrees K -Second you have to fill in the variables [V1=450mL, V2= missing mL, T1= 288 degrees K, T2=313 degrees K] -Third you have to transform the equation so that you are finding the missing variable(V2) __V1T2__ = V2 T1 -Fourth you have to put the variables into the equation __(450mL)(313K)__ (288K) -Finally all you have to do it calculate the final answer: V2=490mL
 * Example**:

This picture shows how as the volume decreases so does the temperature.

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