Heating with bunsen burner
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The document provides instructions for safely setting up and using a Bunsen burner. It describes how to light the burner by turning on the gas and waving a lit splint over the chimney. It also explains that there are two flame types - a blue heating flame and a yellow safety flame - and instructs students to use each flame to heat water and compare how long it takes to boil.
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Tes ini berisi soal-soal untuk menguji pengetahuan umum dan kesamaan kata. Terdiri dari tiga bagian yaitu tes pengetahuan umum berisi 20 soal pilihan ganda, tes kesamaan kata berisi 30 soal, dan tes hubungan kata berisi 50 soal.
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- Global population growth and its effects on pollution of water, air, and land.
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The document discusses the ideal gas law and its relationship between the pressure, volume, temperature, and amount of gas. It defines Boyle's law, Charles' law, Gay-Lussac's law, and how they combine to form the ideal gas law (PV=nRT). It provides the definitions and units for pressure, volume, temperature, moles, and the gas constant in the ideal gas law. Examples are given for converting between pressure units and using the ideal gas law to calculate moles or temperature given the other variables.
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PENGARUH TATA LETAK TERHADAP PERAMBATAN NYALA API BERBASIS METODE FDS (FIRE ...
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The document describes an experiment testing whether a black bottle or clear glass bottle heats water faster when placed in sunlight. The student hypothesized the black bottle would heat faster since it absorbs heat more readily. Measurements showed the black bottle reached a temperature of 103 degrees Fahrenheit, while the clear bottle's temperature was too low to measure. The conclusion is that the black bottle heats water quickest due to better absorption of the sun's energy.
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Heating with bunsen burner
- 1. Have a think! Can you label the Bunsen Burner?
- 2. Objectives All students will be able to safely set up and light a Bunsen burner. All students will safely heat substances in the Bunsen flame.
- 3. How do you set up a Bunsen Burner?
- 4. How do you light a Bunsen Burner? Wear goggles. Get a safety mat and put it near a gas tap, away from the edge of the bench. Put the Bunsen Burner in the centre of the mat. Attach the gas tube to the gas tap. Make sure that the air hole on the Bunsen is closed. Light a splint. Turn on the gas tap. Wave the splint over the chimney.
- 5. The two Bunsen flames Safety Heating
- 6. Heating water NOW, heat the same amount of water in 2 different beakers. Use the blue ‘heating flame’ to heat the water in one of the beakers, and the yellow ‘safety flame’ to heat the water in the other one. Time how long it takes to heat the water to boiling in each case.
- 7. What happened? Which flame was better at heating the water? What else did you notice? Write up what you did in your books.
Editor's Notes
- Ask them the safety points – i.e. no flame proof mat.
- Go over this if necessary.
- Remind students which flame to use.