Blake+Kaplan,+Jeremy+Shwartz,+Halle+Freidman,+Beth+Galiad


 * What data did your group record? Include temperature and pressure values using correct SI units

What observations did your group make? What did the bottle look like and feel like?**

In this experiment our lab group used two large white tubs, a 2 liter coke bottle, and paper to jot down observations made by our lab group. One tub of water was cold, filled with ice, and had condensation on the outside. The other tub was warm and had no condensation on the outside.When we started we had the bottle opened for 20 seconds then we closed it shut so the bottle was squeezable but couldn’t be squeezed until two sides touch then we put it in the warm water for 45 seconds and the pressure filled up the bottle until you couldn’t squeeze it anymore. Then we put the bottle in the cold water for 45 seconds, it was easier to squeeze the bottle than when we started and we could touch the two sides together.

What conclusions can your group make? Please explain why the bottle did what it did in the two different baths. In the warm water the bottles pressure built up until you couldn't squeeze it because the warm water heated up the atoms in side which sped them up building more pressure. In the cold water the pressure subsided because the cold water slowed the atoms down which relieved the pressure. In the cold water the pressure was much less because the atoms did not have the freedom to move around.

__//**Leaky Can:**//__
**What data did your group record? Include temperature and relative humidity values using correct SI units**

After the experiment the temperature on the inside of the metal can was 5.1 degrees Celsius. On the outside of the metal can was 24 degrees Celsius and the humidity near and around the can was 98.6%.


 * What observations did your group make? What did the metal can look like and feel like both before and after?**

Before the experiment the metal can was dry and shiny. Also it was a cylinder, the color was metallic and silver. On the can there was one vertical line from top to bottom. On the inside of the can the color was black and and the texture was dry. Then we filled up the can with ice and water, thn put green food dye in it to change the color. After the experiment the inside of the metal can was filled green water and ice. After the experiment the outside was filled with condensation. The condensation was clear and watery, not green and it only went to the height or a little above the condensation. This observation explains that the can was not leaking any water because the water on the outside of the can was white and not green the color of the water inside of the can.


 * What conclusions can your group make? Please explain why the metal can did what it did. Please be very descriptive in your explanation.**

Our group concluded that the liquid on the outside of the can was not the liquid on the inside of the can, thus the green water did not leak through. The liquid on the outside of the can came from the humidity mixing with the cold water on the inside of the can, which is the gaseous steam or gaseous water vapor from the boiling water. The humidity in the air through the process of condensation, which is the gaseous watervapor's atoms get rid of energy causing the particles to slow down and convert back into a liquid, the water vapor condensed to the outside of the can.