Pressure, Volume, Temperature, Number of moles!!

Another awesome day Honor chemistry 7th period!! oh yeah

Today we learned relationship between Pressure, Volume, Temperature, and Number of moles by looking at three formulas.

The first one was Boyles' Law

Therefore

As pressure increase volume decrease and when volume in crease pressure decrease.

a constant(k) stay same and pressure and volume are inversely proportional

The next formula was Charles' Law

As Temperature increase volume increase, so volume is directly proportional to temperature

o

B = a constant

Mr. Liebeman show a demo of this formula

He had two beakers and two balloons, and he heat one of them and put the other one into liquid nitrogen. As you can see in this picture the ballon on right side blowed up, because the temperature of air inside of ballon increase and it increase volume. On left side the ballon stuck inside of beaker, because this one was put in liquid nitrogen and cooled, so the air inside of beaker decrease volume.

The last formula was Avogadro's Law

a = a constant

Volume is directly proportional to the number of moles

Overall if we combined these formula to one formula

Whenever each one of value stay same we can cancel out

once again I really think 7th period Honors Chemistry is cooler than any other class haha

tonight's homework is Gas law sheet, and NEXT SCRIBE IS.......JOE R yeahhhh

D-day (demo day)

Great day once again in seventh period chemistry. Three awesome demos and of course an immense amount of learning. We dove right into our notes on the properties of gases. We discussed the relationships between NUMBER OF ATOMS, PRESSURE, VOLUME, and TEMPERATURE. The Chem Think homework did a beautiful job of explaining this and so did Mr. Lieberman. The notes for Tuesday's class are slides 1-5 .

Gases pt.1

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The first demo was the bed of nails demo. Liebs tricked all of us (mostly Bailey) into believing that he was some sort of crazy superhuman daredevil by lying on a bed of nails

It turns out that any average Joe can lay on this plank, because of a simple equation.

Pressure = Force/Area. Because the area is so large, the pressure is decreased and the bed of nails becomes very comfortable.

The next demo involves a vacuum, a small Japanese child, and a garbage bag. It was meant to simulate the feeling of having 15 lbs of pressure on us at all times.

The third demo involved shaving cream and more vacuums. This demo can also be done with a balloon.

Because there is almost no air outside of the balloon, it expands.

The moral of today's class is that if anyone ever asks you what you do in Chemistry, you tell them that we lie on beds of nails and put kids in bags without air.

Next scribe is Takashi, he deserves it after what he went through.