Monday, May 20, 2019
Design Lab Essay
Investigate the come up of energy given off from unstable arouse cellsCalorimeter is a device utilize to measure the heat of chemical reactions, physical changes and employ to deter momente the amount of heat released or absorb during a chemical reaction. Fuel which is used every day as a source of energy cans combust giving of different amounts of energy. In this experiment the combustion of naiant candela will be used to find the change in temperature of 20 ml beaker of irrigate at different beats. Using this experiment, we can used the energy given of by the standard candle evoke to determine how other fuels used in everyday life gives off energy and how to improve these conditions. trouble how would change in time affect the temperature of body of piss system while heated by a liquid fuel?Hypothesis if the beaker of piddle burns for a long time, then the temperature would be greater from the airplane pi cover temperature than the beaker that burns for less amount o f time.ProceduresMaterials* Goggles* Apron* Beakers* Water* Flame (candle)* Stopwatch* Pencil* report card* Ring stands* Lighter* Thermometer* Graduated Cylinder* Wire GauzeProcedure1. Collected all incumbent materials2. Put on your apron and goggles3. Set up the beaker in the ring stand on top of the wire gauze4. peak about 20 ml of peeing with the receive cylinder and place on top of the wire gauze in the ring stand.5. Using the thermometer measure the temperature of the pee and record it under control group.6. tush the liquid fuel under the beaker and carefully light the candle7. Using the stopwatch, start the time for one here and now and blow out the candle after the flash has passed.8. After you confine pursy out the candle, record the new temperature of the weewee.9. Wash the beaker all in all in the similar type of body of peeing that was used to fill the beaker for the first one.10. Then repeat the travel 4-9 two more(prenominal) than times for the contr ol group.11. After doing 3 tribulations for the control, then Measure about 20 ml of water with the graduated cylinder12. measure the temperature of the water and record it under 2 fine trial13. Place the liquid fuel under the beaker and carefully light the candle14. Using the stopwatch, start the time for 2 smalls and blow out the candle after 2 minutes has passed15. After you have blown out the candle, record the new temperature of the water.16. Wash the beaker completely in the same type of water that was used to fill the beaker for the first one.17. Then repeat the steps 12-16 two more times for the 2 minute trial.18. After doing 2 minute trial, then Measure about 20 ml of water with the graduated cylinder for 3 minute trial.19. measure the temperature of the water and record it under 3 minute trial20. Place the liquid fuel under the beaker and carefully light the candle21. Using the stopwatch, start the time for 3 minutes and blow out the candle after 3 minutes has passed22. After you have blown out the candle, record the new temperature of the water under the 3 minutes trial.23. Wash the beaker completely in the same type of water that was used to fill the beaker for the first one.24. Then repeat the steps 18-23 two more times for the 3 minute trial.25. After doing 3 minute trial, then Measure about 20 ml of water with the graduated cylinder for 4 minute trial.26. measure the temperature of the water and record it under 4 minute trial27. Place the liquid fuel under the beaker and carefully light the candle28. Using the stopwatch, start the time for 4 minutes and blow out the candle after 4 minutes has passed29. After you have blown out the candle, record the new temperature of the water under the 4 minutes trial.30. Wash the beaker completely in the same type of water that was used to fill the beaker for the first one.31. Then repeat the steps 25-30 two more times for the 4 minute trial.32. Once all data has been collected, then analyze your date and write the conclusion. info hesitationEquipmentUncertaintyBeaker 0.01 mlThermometer 0.01 CStopwatch 0.01 secondsGraduated Cylinder 0.01 mlControl-1 minute campaign 1 derive of water sign temporary last temporary diverge in temp test 2 issue forth of water sign temporary workerFinal tempChange in temporary psychometric test 3 derive of water sign TempFinal TempChange in Temp2 min runnelTrial 1 inwardness of water sign TempFinal TempChange in TempTrial 2 numerate of waterInitial TempFinal TempChange in TempTrial 3 aggregate of waterInitial TempFinal TempChange in Temp3 min TrialTrial 1Amount of waterInitial TempFinal TempChange in TempTrial 2Amount of waterInitial TempFinal TempChange in TempTrial 3Amount of waterInitial TempFinal TempChange in Temp4 min TrialTrial 1Amount of waterInitial TempFinal TempChange in TempTrial 2Amount of waterInitial TempFinal TempChange in TempTrial 3Amount of waterInitial TempFinal TempChange in TempQ = mc?TQ hoi polloiChange in TempC4.18 J/G CProce ssed DataUncertaintyEquipmentUncertaintyBeaker 0.01 mlThermometer 0.01 CStopwatch 0.01 secondsGraduated Cylinder 0.01 mlControl-1 minuteTrial 1Amount of waterInitial TempFinal TempChange in TempTrial 2Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22.45 0.01 C31.30 0.01 C9 0.02 CTrial 3Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22.40 0.01 C30.65 0.01 C8 0.02 C2 min TrialTrial 1Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22.95 0.01 C40.40 0.01 C18 0.02 CTrial 2Amount of waterInitial TempFinal TempChange in TempTrial 3Amount of waterInitial TempFinal TempChange in Temp3 min TrialTrial 1Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22.60 0.01 C50.75 0.01 C28 0.02 CTrial 2Amount of waterInitial TempFinal TempChange in TempTrial 3Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22.80 0.01 C50.20 0.01 C28 0.02 C4 min TrialTrial 1Amount of waterInitial TempFinal TempChange in Temp20 0.01 ml22 . 60 0.01 C56.15 0.01 C34 0.02 CTrial 2Amount of waterInitial TempFinal TempChange in TempTrial 3Amount of waterInitial TempFinal TempChange in TempQ = mc?TQMassChange in TempC4.18 J/G CUncertainties of dataml of water0.01ml /20.00 ml light speed %0.05%Beaker0.01ml /20.00 ml blow %0.05%Time0.01 min /1 min one hundred %1.0% fencesitter VariablesIndependent Variable 1 (1 minute)0.01 min /1 min 100 %1.0%Independent Variable 2 (2 minutes)0.01 min /2 min 100 %0.5%Independent Variable 3 (3 minutes)0.01 min /3 min 100 %0.33%Independent Variable 4 (4 minutes)0.01 min /4 min 100 %0.25%Initial TemperaturesControl-1 minuteT1. Temperature(22.50)0.01 C /22.50 C 100 %0.04%T2. Temperature(22.45)0.01 C /22.45 C 100 %0.04%T3. Temperature(22.40)0.01 C /22.40 C 100 %0.04%2 infinitesimal TrialT1. Temperature(22.95)0.01 C /22.95 C 100 %0.04%T2. Temperature(22.40)0.01 C /22.40 C 100 %0.04%T3. Temperature(22.40)0.01 C /22.40 C 100 %0.04%3 Minute TrialT1. Temperature(22.60)0.01 C /22.60 C 100 %0.04%T2. Temperature(22.75)0.01 C /22.75 C 100 %0.04%T3. Temperature(22.80)0.01 C /22.80 C 100 %0.04%4 Minute TrialT1. Temperature(22.60)0.01 C /22.60 C 100 %0.04%T2. Temperature(22.75)0.01 C /22.75 C 100 %0.04%T3. Temperature(22.25)0.01 C /22.15 C 100 %0.04%Final TemperatureControlT1. Temperature(30.00)0.01 C /30.00 C 100 %0.03%T2. Temperature(31.30)0.01 C /31.30 C 100 %0.03%T3. Temperature(30.65)0.01 C /30.65 C 100 %0.03%2 Minute TrialT1. Temperature(40.40)0.01 C /40.40 C 100 %0.02%T2. Temperature(41.70)0.01 C /41.70 C 100 %0.02%T3. Temperature(40.55)0.01 C /40.55 C 100 %0.02%3 Minute TrialT1. Temperature(50.75)0.01 C /50.75 C 100 %0.02%T2. Temperature(50.35)0.01 C /50.35 C 100 %0.02%T3. Temperature(50.20)0.01 C /50.20 C 100 %0.02%4 Minute TrialT1. Temperature(56.15)0.01 C /56.15 C 100 %0.04%T2. Temperature(55.90)0.01 C /56.15 C 100 %0.04%T3. Temperature(56.20)0.01 C /56.15 C 100 %0.04%Q = mc?T of controlQ = 4.18 J/G C (0.048g) change in TemperatureQ= 20.0 0 ml (1L/1000ml)(1mol/22.4)(18.08/1 mol) = 0.0161 gConclusionIn this experiment it was proven that when certain about of water are left for a certain time over a flame it would change in temperature. The longer the water is over the flame, the temperature increased which proved the hypothesis to be correct. This experiment proved that the more time water is heated, the higher the temperature would be. If this experiment was to be conducted the next time, there would be a lot of changes. First the control would be in the temperature of water without any heated added to it. Then the time it was to be heated would be longer than one minute different in each different trial. much trials of the same time would be conducted to make sure that the experiment would be performed correctly.
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