Overview
Dry ice is a solid form of carbon dioxide that produces a cold dense mist. I first learned what Dry Ice was in fifth grade, this was due to the fact that my class had taken a field trip to River Legacy Park. Where we saw an experiment and learned facts about dry ice. This led to a fascination with dry ice, in this experiment I will test whether the temperature of water and soda affect when poured over Dry ice. Dry Ice has multiple purposes some of which, is chemotherapy, to carbonate liquids, store food, and accelerate plant growth. Since, I always liked the thought of working with Dry Ice I had begun to think of an experiment to do for the IA involving Dry Ice. After much consideration I choose to test how soda and water would
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Introduction
Thermodynamics is “the study of the effects of work, heat, and energy on a system”. In Thermodynamics to find the temperature change I will use the formula: Q=MCT. In this formula Q represents the heat added, M is the mass, C is the specific heat, and Tis the change in temperature. From using this equation I will later figure out the uncertainties I have in this experiment using the formula: Amount of DataGiven (average data/ amount of data given) then you take the given and subtract it from the answer from the formula above, lastly you add it up and square root it. Next, you put it in this form: average data ± answer using the formula above. Lastly, I will use error bars on the graphs to represent the uncertainty of the graphs. Error bars are represented by this image:
Subsequently, I choose this experiment because the thought of using Dry Ice in a experiment was very intriguing to me due to the properties of Dry Ice. This experiment made me think a lot about the uses of Dry Ice and how they are used in everyday life. Initially I believed that Dry Ice did not have that many purposes in life, but in the process of experimenting I learned the purpose of Dry Ice and the temperature changes that come with Dry Ice.
Research Question: How does the temperature of
The first part of the lab began by one lab member adding 10.0 mL of DI water to a test tube while another lab member obtained a beaker full of ice and salt. After both these steps were complete the test tube was put in the beaker full of ice. Immediately following the test tube be being placed in the beaker, a temperature probe was inserted into the test tube. The initial temperature was recorded and after the temperature was recorded in 30 second increments. Once the water exhibited supercooling and then remained consistent at .1 °C for 3 readings it was determined that the water had froze and formed crystals. Evidence that crystals formed allowed for it to be confirmed that the water actually hit freezing point at .0
A scale conversion is calculated and the measurements from each thermometer are examined to see how closely correlated they are. _M___
Taking ice cream outside on a warm day and then on a cold to see if warm weather affects the melting of ice cream would be the experimental approach.
Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring
For this lab, we brought a empty soda can to school to show how pressure and temperature can affect the structure of the can. To begin the experiment, we needed a empty soda can, water and ice in a small plastic tub, and a hot plate. First, we added about a tablespoon of water to the empty soda can. Second, we put the soda can on the hot plate and waited until the water was brought to a boil. Then we used beaker tongs to carry the hot soda can and flipped it over into the container of water and ice. Once the can touched the water, the can made a loud crushing sound and the can crippled inward.
I started with controlling my experiment environment. It was in a still kitchen, with no appliances running to minimize humidity and control the room temperature. I then broke my ice cube tray and finding cubes that weight .10grams. I set up my timer for each station. I put three-.10gram ice cubes in a identical contained on top of the pre measured ½ teaspoon of sugar, salt and baking soda, then I hit start on the timer. When the timer hit 15 minutes I picked up each ice cube and put it on another dry identical dish. I then measured the melted liquid, followed by measuring the melted ice cube alone. I repeated this three times to get an average.
The Lab One was done on Laboratory Techniques and Measurements. The first experiment with my Lab partner; we got opportunity to experiment how to conduct measurements in length by using metric conversion. We started in cm units and changed into mm by x10, and moving decimal point x1 to right. To find in meter we moved from cm to meter two decimal points to the left or double check our self divided by 100 and all records in data table 1. The second experiment was to measure temperature of how cold and hot tap water can be by using thermometer in Celsius units. From this experiment, gained knowledge that tab water doesn’t boil to 100 Celsius related to containing different
In my project, I will do an experiment to find out which material makes ice melt the fastest while the temperature of the room will remain the same. This research is important because if you are short on ice and you need it you can figure out which material will make your ice last the longest if you have no insulation. For example, if you were in the desert and had a cooler you would know what to put in your cooler to make your ice last the longest. I will be testing with three different materials: steel, wood, and fabric. My hypothesis is if the steel retains the ice's cold temperature then it will take the longest for the ice to melt. My goal is to help cooler companies improve their coolers by outlining them with whatever material helps
Hypothesis: If the sugar in the ice cubes will cause the ice cubes to melt quicker than the ones without it. Equipment: 1 tablespoon (20 g) White Sugar 280 ml of water (this needed to be divided in half for the different types of ice cubes, so 140 ml for each ice tray and 10 ml for each cube) 2 ice trays (with 14 cube slots) Freezer 2 Plates Measuring jug Stopwatch
To start the soda cans cooled for 20 mins at 5 min intervals. A,B,C,D all started out at 20 degrees. In the first 5 minutes soda can A was in ice and water and cooled down to 19 degrees f. Soda can B was cooled in ice and stayed the same at 20 f. Soda can C cooled in the freezer and also stayed the same at 20 f and soda can D stayed at 20 degrees f.
In order to measure the heats of reactions, add the reactants into the calorimeter and measure the difference between the initial and final temperature. The temperature difference helps us calculate the heat released or absorbed by the reaction. The equation for calorimetry is q=mc(ΔT). ΔT is the temperature change, m is the mass, c is the specific heat capacity of the solution, and q is the heat transfer. Given that the experiment is operated under constant pressure in the lab, the temperature change is due to the enthalpy of the reaction, therefore the heat of the reaction can be calculated.
The chart shows that the overall temperature of the jar with dry ice was colder. We started our experiment by filling two mason jars with equal amounts of sand in both jars and dry ice in one jar. Next, we covered the top of the jars with plastic wrap and poked a temperature probe through
This later on in life could help us all in life in the scientific world. I think it can help us by getting us information that we want from that experiment to help us. The experiment can show
To achieve this, the final value from each thermocouple was set to be equal to the warm water bath temperature (370C), and the initial reading was set equal to the ice water bath temperature. Thus, for each thermocouple an equation was obtained using the two points to convert voltage readings to temperature. An example of the calibration for one of the thermocouples is shown in Appendix II.
Dry ice is simply the frozen form of the common element known as carbon dioxide, which human beings exhale during respiration and which is essential to the health of plants all around the world. Dry ice is very cold, with an average temperature of minus 109.3 degrees Fahrenheit. Moreover, it is an unusual solid because it changes directly to a gas and not a liquid during a "melting" process known as sublimation. When dry ice is put in water it accelerates the sublimation process, creating clouds of fog that fill up your dry ice bubble until the pressure becomes too much and the bubble explodes, spilling fog over the edge of the bowl. Dry ice is sometimes used as part of theater productions and performances to create a dense foggy effect.