PURPOSE The purpose of the experiment is to determine the temperature, in degrees Celsius, at which all particle motion stops (absolute zero). MATERIALS Before assembling the materials, put on safety glasses FIRST, then prepare a clean, dry workspace (away from food) with all of the necessary materials. 1/8 cup water small pan of ice water 1 empty aluminum soda can Tongs or oven mitt Borosilicate glass beaker (600 mL) #1, 1-hole rubber stopper 6” test tube Celsius thermometer 50-mL graduated cylinder Stove top Ice Bucket or large pot Gloves Goggles PROCEDURES SAFETY FIRST: Since you will be heating water on a stove top, this lab requires adult supervision. …show more content…
It was then placed in the ice bath, in which immediately the can slightly collapse on itself. In part two of the experiment, the prepared ice bath temperature measured at 1°C (T2). While the heated bath temperature stabilized around 85°C (T1) after 5 minutes, where it also began to simmer. The test tube with the rubber stop in the heated bath had no water for the entire 5 minutes. When the test tube was placed inside the ice bath for 5 minutes water appeared to flow inside the test tube. The amount of water that flowed into the test tube measured at 5 mL (Vw). When determining the volume of the test tube in the 100 mL graduated cylinder with 30 mL of water, it displaced the water up to 74 mL. Thus determining the volume of the test tube as 34 mL …show more content…
In which the graph is directly proportional to the volume and the temperature. As temperature increases, the volume increases, which exhibits a linear function. Therefore a linear equation can be made by using the two given points (85 (T1), 34 (V1 ) and (1 (T2), 29 (V2). By using the slope formula, the slope turn out to be 0.0595 mL/°C. From this the y and x intercept can derived from the slope when setting either x or y as zero to solve for the other. In this case, when x is one of the points such as 1 the y intercept can be solved to be 28.9. When setting y to zero and solving for x the value comes out to be -484(°C) which is the value in which the volume is 0. When comparing it to the actual absolute zero (-273.15°C) it is -77.2% off from the actual value in which the volume is suppose to be zero. At the end, the experiment correlated with Charles ' Law. This can be explained with water entering the test tube. In which lower temperature lowers the volume of the gas in the tube (water going in reducing the volume). When referring to absolute zero, it refers to 0 thermal energy, and in context scientists were able to cool down matter that is very close to this number but did not achieve absolute zero. For gases many factors that contribute on whether gas escape the atmosphere, this include the mass of gas, temperature, gravity, and planet size. The reason Charles ' Law uses the Kelvin scale
We gauged the amount of mass that the fuel lost when raising the temperature of water 20 degrees C. Throughout the experiment we constantly worked with chemicals, boiling water, and liters, turning the Bunsen burners on and off. Because of this, each member of our group were carefully to wear goggles, gloves, a lab coat, and closed toed shoes, with pants down to the ankles. We also cautiously recalled the safety quiz with the locations for the shower and eye flusher in order to make sure we were prepared in case we required their use. Learning to remember these skills grew our knowledge and helped us be cautious for labs to come when working with dangerous
It was learned that changing the volume of the same substance will never change the boiling point of the substance. However having two different substances with the same volume will result in two different boiling points. The purpose of this lab was to determine if changing the volume of a substance will change the boiling point. This is useful to know in real life because if someone wanted to boil water to make pasta and did not know how much water to
Thermodynamics is essentially how heat energy transfers from one substance to another. In “Joe Science vs. the Water Heater,” the temperature of water in a water heater must be found without measuring the water directly from the water heater. This problem was translated to the lab by providing heated water, fish bowl thermometers, styrofoam cups, and all other instruments found in the lab. The thermometer only reaches 45 degrees celsius; therefore, thermodynamic equations need to be applied in order to find the original temperature of the hot water. We also had access to deionized water that was approximately room temperature.
The key to keeping any task, especially this one, flowing smoothly is gathering all the materials so they are within reach. Having the materials near helps the process go by quickly, for you are not constantly stopping to search for materials needed at that time.
The thermometer’s original temperature before coming in contact with an outside object is represented by T. ∆T/∆t is the average temperature of the digital thermometer. represents the temperature of the heat flowing object. In this lab, the temperature of the air is represented by Tair=T. To= Thand is the temperature of the hand.
Make sure you are after the instructions step by step, to make it correctly. Clean up any unwanted messes, and put away all materials. Don't forget the key rule; have
A summer day when the tempeature got much higher than expected and I wasn’t prepared. It was summer football practice. The time was 10:30 in the morning. When the team was running, it was 80 degrees. It wasn’t so bad until it got later in the day hotter.
is the Kelvin scale. On the Kelvin scale absolute zero has a value of zero
Keep the ball bearings inside of the plastic container and not pour them out all over the work bench.
Think of bodies of ice bigger than some countries. Bodies of ice that impacts our daily lives. Such chunks of ice are most are commonly known as the North pole or the South pole. In reality, these great bodies of ice found throughout most of the planet and do more than just provide us a cold breeze. They have been contributing in drastic things such as global warming, the water we drink, and many agricultural influences around the globe. As time has passed, naturally, with gas emissions, pollution and global warming has caused the Earth to warm. In exchange, ice caps are melting more and more, and yet as more time passes we will soon see the drastic effects of the disappearance of ice caps. These chunks of ice continue to grow
Most people can say that they have watched a sword fight on TV. At the time, it may seem cool or even awesome. The truth is, blades are extremely dangerous, and if not handled properly, can severely injure someone. One such event occurred when I was around eleven or twelve years old. Moments like these have a lasting impact on our lives, which is why this occasion has stuck in my head ever since.
The same forces that impact the compressed oxygen Respiratory Therapists handle every day, effect the work and outcome of breathing in the human body. The gas law, Charles’ Law, demonstrates the relationship between a contained volume of gas and its temperature, a directly proportional relationship. It states that in a contained space, if a gas’ temperature were to increase, the volume of the gas would increase as well (Colbert, et al., 2012). Charles’ Law is confirmed every day inside and outside a hospital, and it is especially important to understand when working with the human body.
- Take care when handling glassware eg. Thermometers, beakers, stirring rod and test tubes, to minimize breakage keep glassware away from the edges of the bench and be careful when holding and moving them around.
TIP! Safety is the most important aspect of a project. Use the right safety gear and operate tools according to their manual.