The effect of salt on the boiling temperature of water research paper Essay

Project Design PlanEveryone knows that weewee boiling spirit levels at 212F, but does adding coarseness to a raft of water make it boil at a higher temperature? Being a person that cooks frequently at home, I wanted to test the debated idea that adding salt to my water allow make it boil faster. One of my friends says it does prefer the temperature and therefore cooks it faster. My other friend says it only helps it taste better.Literature ReviewTable salt is often added to water before the boiling process in hopes that the water will boil faster. It has been argued that the boiling temperature difference is insignificant with a small pot of water. However, when adding salt to large amounts of water, the change is more noticeable.Southwest Research Institute states that the heat capacity of salt water is less than that of pure water, which means that it takes less energy to raise the temperature of the salt water 1 C. than pure water. The time it takes a pot of water to boil is hold backled by three things, first is how much heat you drift into the pot, second is how fast the temperature rises and third is the boiling point of the liquid (Southwest Research Institute, 2014).Salt elevates the boiling temperature of water using a process known as boiling point elevation. With water being a known solvent and salt a non-volatile solute, when you add salt to the water, it makes the water an impure solvent, and raises its boiling point above that of pure solvents (Effect of Salt on the Boiling Temperature of Water). observational Design StepsWater will be boiled four different clock as follows1.2 cups of distilled water are added to a 2 quart cooking pota. First run add NO salt this is the controlb. secant run add 1 Tablespoon of table salt Trial 1c. Third run add 1 Tablespoon of table salt Trial 2d.Fourth run add 1 Tablespoon of table salt Trial 32. For for to for each one one(prenominal) one run, bring water to boil3. For each run, record the highest temperature reading of the boiling water4. After first through third runs, allow pot and burner to cool5. Wash pot after each run to clean salt residueReasoningA typical recipe will call for a dash of salt in the water. The articles I read made me believe that adding more salt would make the temperature difference more noticeable, I upped the salt to 1 tablespoonful of salt to each pot of water per run, instead of a dash. Adding a dash of salt could skew the results, because when adding a dash, you will not have the same footmarkment of salt to each pot of water as you would when measuring the salt with a tablespoon. In order to rationalise error, so I used three trials.Sequence of EventsDuring each trial I will be measuring the temperature of the water with a thermometer. Once it reaches its highest temperature, I will record it in my data table. This will be the process for each trial.Tools, Technologies, and Measurement UnitsTable SaltDistilled Water2 Quart Cooking Pot Pint measuring cupTeaspoon and tablespoon measuring spoonsThermometer (Degrees Fahrenheit)Stirring spoonStove top burner (electric)VariablesIndependent Variable Amount of salt added to the waterDependent Variable Temperature at which the water boilsControlled Variables Temperature of fit out setting, pot, type of water, brand of salt, amount of water, thermometerThreat Reduction to Internal ValidityBy washing the pot and thermometer between each trial, I will reduce the amount of salt residue that is on the pot that could alter my results. I will use the same heating unit, pot, and thermometer each time to get more valid results.HypothesisThe hypothesis of this sample is that adding table salt to water will raise the boiling temperature of the water. Process of Data CollectionBoiling signalize of Two Cups of WaterAmount of salt added (IV)Temperature of boiling water in Fahrenheit (DV)No Salt (Control)212.7F1 Tablespoon Salt pass off 1214.9F1 Tablespoon Salt Run 2215.3F1 Tablespo on Salt Run 3215.1FAs predicted, adding salt to water does raise the boiling temperature of the water, even if only minimally. Variations in the boiling temperature may be contributed to slight variations in the measurements of the salt added to the water. It is important to measure both(prenominal) the water and salt accurately to ensure accurate results. Appropriate MethodsFor each run, 2 cups of water were added to a 2 quart saucepan 1 tablespoon of salt was then added to the water and stirred to mix the two ingredients together. The saucepan was then put on the stove and brought to a boil. Once the water reached a estimable boil the final temperature was recorded using a Go-Temp thermometer. The tools and methods used in this are appropriate to the experiment.ResultsThe results were larger than anticipated. The average temperature of the water with the salt was 215.1 degrees Fahrenheit, while the temperature of the control was 212.7 degrees Fahrenheit. This was a difference of 2.4 degrees. ConclusionConfirmation of HypothesisMy hypothesis was confirmed. Adding table salt to water causes the water to boil at a higher temperature. The temperature readings were dense to make. Oven mitts had to be worn to keep my hands from getting burned. I had to be sure that the thermometer wasnt too close to the stove or the temperature would be skewed.Experimental Design as a Key FactorHow you design your experiment is key to helping you keep your results reliable and valid. You only need one separate variable. If you have more than one, you wont know which one is actually affecting your results, it will also be harder to measure. Making as many variables as possible constant will help increase the reliability of the experiment.ReplicationBy following this plan and report, you can replicate this experiment. One might accent adding different amounts of salt to see if there is a point at which the amount of salt added stops increasing the boiling point. Evaluation of V alidityReplicating this experiment will add to the validity of my results and others results. If the experiment is replicated numerous times this will add to thevalidity, resulting in a more accurate conclusion. It is important to measure both the water and salt accurately to ensure that the results collected are as accurate as possible.ReferencesDoes water boil faster if you put salt in the water? (n.d.). Retrieved July 19, 2014, from http//www.swri.org/10light/water.htmEXPERIMENTAL SCIENCE PROJECTS The Effect of Salt on the Boiling Temperature of Water. (n.d.). Retrieved July 19, 2014, from http//www.freesciencefairproject.com/projects/effect_salt_boiling_water.htmlEffect of Salt on the Boiling Temperature of Water. (n.d.). Retrieved July 19, 2014, from http//www.actiondonation.org/articles/effect-of-salt.htmlPost navigation. (n.d.). Retrieved July 19, 2014, from http//www.sciencebase.com/science-blog/how-does-salt-affect-the-boiling-point-of-water.html