Wednesday, May 4, 2016

Avagadro's and the Combined Gas Law

Avogadro's Law tells us for that a gas at constant temperature and pressure, the volume is directly proportional to the number of moles of gas present.

Equal volumes of gas at the same temp and pressure will  have the same number of particles.

This holds true for gases at low pressures.

The mathematical formula for this law is V1n2=V2n1

*The volume of 1 mol of gas at STP (0 C or 273.15 K) is 22.4L.

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The combined gas law is the only law with 6 variables.

This is a combined formula of all the gas laws when all variables change.

The mathematical formula for this one is P1V1T2=P2V2T1



Here are some links if you need more help:

2 comments:

  1. Thanks for this great post Marie, I like how you went through the whole lesson and laid out the basis for each of the laws dealing with the gases. In addition, your pictures demonstrating the laws were very helpful in understanding the laws. Thanks again!

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  2. Great summary of the lesson and I like the pictures that give a good, clear, visual.

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