Lab 4.2 Heating and Cooling Curves Of Lauric Acid.

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Based on Jake Eggleston and Nate Gillian's data the melting point of Lauric acid is 46 degree from the above graph and the Freezing point of Lauric acid from the second graph is  also 46 degree the two values are the same. To determine the Melting point of Lauric acid on the Heating curve of Lauric acid i looked at the lowest x value on the graph and they were constant so i figure out that it was the melting point and i kind of did the same thing on the second graph to figure out the freezing point on the cooling curve of Lauric acid.

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Kinetic energy is the energy that an object has because of his motion . Kinetic energy increases during the heating curve when it's at the solid phase and liquid phase and also gas, Kinetic energy decreases in the cooling curves in the steam cools, also as the solid cools and at the condensation point  .The Potential Energy is the energy that is stored in a material, the amount of which is determined by the structure of the particles and/or their positions relative to each other. Potential energy increases in the heating curve at the melting, vaporization state and the potential enery decreases in the cooling curves as the gas system condenses to the lquid phase and at the freezing point liquid water loses potential energy as bonds form to hold molecules in fixed positions in the solid state.

Enrichment :

The actual melting point of lauric acid is 44'c. We found that the melting point of Lauric Acid was 46 degrees. The percent error was 4.45%. This could have been because when we were doing our experiment we didnt stir the Lauric enough. Latric Acid is often used for soaps and shampoos. It's in soaps and shampoos because it helps dissolve fats.It helps shampoos remove grease from your hair to make it look good.

Blog 4.1 Fun with Air Pressure

1. A decrease in pressure causes the volume of a balloon to increase. Because more molecules are bouncing inside of the balloon rather than outside, which inflates the walls of the balloon. The volume of the balloon won't stop increasing until the molecules bouncing inside and outside the balloon are equal.
2. Adding more gas to a bottle will increase the pressure in that bottle. Because When additional gas are added to the bottle, since there are more molecules in the bottle , they bounce around more than outside,increasing the pressure. 
3. As the volume of a cylinder is increased the pressure will decrease. When the volume of an object is increases, there is more area for the molecules to float around before they hit a wall.Since they have more room to float,the walls will be hit less than if the volume was smaller, therefore a decrease in the pressure.
4. Increasing the pressure in a tire by adding more gas will cause the volume to increase.When gas is added to a tire,more molecules are bouncing around inside. The pressure would then increase because the walls of the tire are bounced off of more often. 
5. As the temperature of a closed container of water is increased the amount of water vapor above the water causes an increase in vapor pressure. At the higher temperature you heat the water, the more water vapor will be produced. Since there's more vapor as the temperature increases, there will be a higher pressure as well.
6.  As the air pressure above a liquid is increased by adding more air, the boiling point of the liquid will remain the same. If air is blown above the liquid, the molecules in the air will bounce around in all directions. They will venture away from the liquid. if any molecules bounced off the liquid , the boiling point wouldnt have changed much.
7. If a ballon filled with air is taken under water to a depth of 10 feet,  it's volume will increase. The molecules in the air inside of the ballon will be rapidly boucing around,while low,if any,movement of molecules in water would be much too slow, hitting th balloon's exterior less. The ballon will then shrink.
8.  The temperature of a beaker of boiling water will increase as more heat is added. The heat is energy, and when more of it is put inside of the water, the temperature will increase.
9. Hot air rises because it is less dense the cold air around it. The molecules in a cold air have a stronger attraction than the molecules in hot air, and since the cold air doesnt have as much mobility as the hot ait it sinks to the bottom.
10. When heated, the volume occupied by air in ballon will increase.  The molecules will speed up when the balloon will be heated, therefore making the molecules bounces off the walls more.  As the walls are being bounce off of, the ballon expands.