Energy Sources and Alternative Energy Essay

Experiment 1 The Effects of coal MiningTable 1 pH of Water SamplesWater Sampleinitial pHFinal pH (24-48 hours) iron pyrite55Activated vitamin C57Water55POST LAB QUESTIONS1. convey hypotheses nameing the erect of pyrite and coal on the acerbity of irrigate?a. Pyrite guessing = If pyrite is added to urine, it lead make the weewee more than acidic. b. Coal meditation = If the set off carbon is added to the water, it will make the water more acidic.2. establish on the results of your experiment, would you disapprove or fancy each(prenominal) guesswork that you arrive atd in question 1? exc drug abuse how you ascertain this.a. Pyrite hypothesis accept/reject = The hypothesis was jilted as no change occur blood-red in pH levels after testing the sample with a pH strip b. Coal hypothesis accept/reject = The hypothesis was rejected as the pH level flushfrom 5 to 7 after testing the sample with a pH strip, which would fate a rise in alkalinity.3. Based on your selecti ve information, what effect do you predict coal mining has on the surround? serve up = Based upon the data collected, on that point does seem to be a itty-bitty effect on the environment, however, based upon acquaintance of the subject, coal mining keep and does adjudge a significant adverse effect on the environment.4. What can be through with(p) to prevent mine drainage from electr cardinalgative the ecosystem? Utilize at least unrivaled scholarly resource to support your suggestions.Answer = point mine drainage (AMD) is one of the more serious environmental problems in the mining industry. AMD is the major pollutant of surface wet in the Mid-Atlantic Region of the coupled States (US EPA, 2006). The organic law of AMD is a in truth multiplex chemical and microbial process, and usually occurs where bass excavations, such as those associated with coal mining, breach unweathered pyritic materials. Water contaminated by AMD on permitted aims where mining has occurred m ust be treated to re go forward dissolved metals and rescind pH. Millions of dollars be spent to treat this water and the interaction of these metals with each other and their remotion from water are important areas of think over (US EPA 2006). Water is the basic transport for contaminants, and then most measures at limiting acid formation use migration control and are concerned with the control of water proceed (EPA 2006). To help out local ecosystems, water entry into the site of acid formation may be controlled by 1. deflexion of surface water flowing towards the site of defilement 2. Prevention of groundwater infiltration into the pollution site 3. Prevention of hydrological water seepage into the affected areas and 4. Controlled placement of acid-generating waste. (EPA 2006).Experiment 2 Solar EnergyTable 2 Solar Energy Experiment Resultsenvironmental Descriptor/VariableObservations(Each should be compared against civilise subnlight)Weather of the DayMostly jocund with some clouds function hurry in direct lie real degenerate get urge on at 45 degree angleVery troubledMotor speed chthonic reflectorsVery stiffMotor speed with 25% shadedVery FastMotor speed with 50% shadedMedium to fastMotor speed with 75% shadedVery decelerateMotor speed under red filtrationFastMotor speed under blue filtrationFastMotor speed under green filtrationFastMotor speed under yellow filtrationFastPost-Lab Questions1. Develop hypotheses predicting the efficiency of solar push button from direct cheerfulness against the 4 variables tested? immediately vs confirmatory hypothesis = If overt to direct sunlight, the get will move meteoric than indirectly exposed ask vs reflected hypothesis = If exposed to reflected sunlight, in addition to direct sunlight, the tug will move faster than only exposed directly have vs shaded hypothesis =Upon shading the solar im adorn, the more than empanel is shaded, the long-playing the ram will move (EX. At 25% shaded the ride will go slower than completely exposed-medium, at 50% shaded, the push will go slow, at 75% shaded the motor will go very slow Direct vs filtered hypothesis = Upon filtering the motor with the different shades of prison cellophane, the motor will go slower2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this.Direct vs indirect accept/reject =Rejected. The motor was well(p) as fast when the solar panel was set up at a 45 degree angle Direct vs reflected accept/reject = Accepted. When the foil was reflected at the solar panel, the motor moved faster. Direct vs shaded accept/reject = At 25% shading-Rejected-The motor moved just as fast as when the solar panel was completely exposed to sunlight. At 50%-Accepted-The motor moved slower than when the solar panel was completely exposed to sunlight (speed medium to fast) At 75%-Accepted-The motor moved very slow compared to when the sol ar panel was completely exposed to sunlight (Very slow) Direct vs filtered accept/reject = Rejected-Upon being covered by the red, yellow, green, and blue cellophane, the motor moved the same as in direct sunlight3. Does step-upd mental picture to the suns light produce more current? Explain how you have sex this based on your data.Answer = YES. The more exposure the solar panel had to the sun, the faster the motor moved. Through a classification of trials with the solar panel and exposure to the sun, it was determined that the more exposure the solar panel had, the faster the motor moved.4. How could you increase the electricity generated by a solar cell during the day, when the suns angle is incessantly changing?Answer = One could increase the electricity generated by a solar cell during the day while the suns angle was constantly changing would be either to move the panels (use ones that can be adjusted) to coincide with the movement of the sun, use adjustable mirrors or other ruminative devices toreflect directly on the solar cells, or both of these options.5. Based on your data, could adding filters to solar panels increase the solar zilch produced? Explain how you know this.Answer = Upon the data I collected, none of the filters actually increase the amount of solar energy produced, so I would say no.References.Acid Mine Drainage. (2006). EPA. Retrieved August 2, 2013, from http//water.epa.gov/polwaste/nps/acid_mine.cfm