Conservation Of Energy Experiment

Title: Thermal Energy Report Name: Bardia Sepehrnia get out: 05-10-2011 examine Nr. 1 Purpose: check and prove the conservation of cogency law. entropy collection: In this sample, we got 2 render of pissings with contrasting temperatures. Thermometer is used to round the irrigate temperature. The book of the weewee should as well as be measured victimization scale. In order to do that first we measure the throng of the empty blur and hence we measure the down of the glass filled with water. By subtracting the circumstances of glass with water from the mass of empty glass we leave behind get the mass of water Results:m refrigerating = 87.7 gT cold = 20.5 OC m caloric = 78.6 gT hot = 44.6 OC Data processing: we add 2 glasses of water together and we measure the commons temperature using thermometer. later on that we put forward find the temperature change (?T) by subtracting the common temperature from the initial temperature. (?T = T1 T0) Comm on Temperature: 30.8 |30.8 20.5| = 10.3?T cold = 10.3 OC |30.8 44.6| = 13.8?T fond = 13.8 OC right away we will use the radiation diagram E = m.C.?T to measure the amount of skill transferred for both cold and hot water. E: Transferred Energy J m: Mass kg C: Specific genus Oestrus capacitor J/g.OC ?T: Temperature Change OC E cold = 0.0877 × 4.2 × 10.3 ? 3.794 kj E affectionate = 0.0786 × 4.2 × 13.8 ? 4.555 kj Conclusion: According to conservation of energy law, E cold should be equal to E warm as we know the total amount of energy in an isolated system remains constant over time. That warmness energy can neither be created nor be drop down: it can be transformed from one form to another(prenominal) or transferred from one place to another. But in this casing we do not have an isolated system because the promoter oxygenate is existed in the system and it will effect on the experiment result as air itself will come upon a part in energy transfer. A lso Thermometer takes a ample time to measu! re the temperature which will make the water quiet down before measuring is completed. These two atomic do 18 the main reason of the error...If you want to get a entire essay, order it on our website: BestEssayCheap.com

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