Charles Law
...olume of a gas. As shown in Chart 1 and Chart 2, all the data points are all in a straight line or very close to it. The experiment was all done under same pressure, and the amount of the gas (# of moles) did not change throughout. As the salt solution with the Tube in was heated, the volume of the gas increased proportionally to temperature. When the solution was cooled, the volume of the gas decreased also proportionally to temperature. In fact, as R square value of 0.9915 indicates, (as shown in Chart 1 and Chart 2) all the collected data points are very precise to the proportional function in Charts. Therefore, there is a proportional relationship between temperature and the volume of a gas at given pressure and amount of gas. According to Charles’s Law, temperature in Kelvin and the volume of a gas has a direct proportional relationship. The results obtained in the...