1 / 17

Understanding Temperature and Heat: A Study with Bunsen Burner Experiment

This lesson focuses on the difference between temperature and heat through an engaging experiment using a Bunsen burner. Students will predict boiling times for 50 cm³ of water and record temperature changes over time. Using a thermometer, they will observe how water’s temperature increases as time progresses, ultimately boiling at 100°C. The experiment will help students understand the relationship between time, temperature, and heat energy, while also allowing them to calculate the power of the Bunsen burner based on observed data.

edena
Télécharger la présentation

Understanding Temperature and Heat: A Study with Bunsen Burner Experiment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Warming up with energy Lesson objectives * know the difference between temperature and heat * Find out through experiment; the power of a bunsen burner

  2. Warming up with energy

  3. Experiment to compare boiling times for different amounts of water For 50 cm3 water Time / min Temp / C 0.0 18 1.0 50 2.0 80 3.0 92 4.0 100 Prediction: ……………………………………………………….. thermometer 50cm3 water HEAT ……………………………………………………….. Conclusion:

  4. Temp / C 100 80 60 40 20 TIME / mins 0 8 4 2 6

  5. For 50 cm3 water Time / min Temp / C 0.0 18 1.0 50 2.0 80 3.0 92 4.0 100 Temp / C 100 80 60 40 20 TIME / mins 0 8 4 2 6

  6. Temp / C 100 80 For 50 cm3 water 60 Time / min Temp / C 0.0 18 40 1.0 50 2.0 80 3.0 92 20 4.0 100 TIME / mins 0 8 4 2 6

  7. Temp / C 100 80 Gradient = Δ temp Δ time 60 40 20 TIME / mins 0 8 4 2 6

  8. Temp / C 100 80 Gradient = Δ temp = Δ T Δ time Δ t 60 40 20 TIME / mins 0 8 4 2 6

  9. Temp / C 100 80 Gradient = Δ temp = Δ T Δ time Δ t = (68 -33) C 60 sec = 60 40 20 TIME / mins 0 8 4 2 6

  10. Temp / C 100 80 Gradient = Δ temp = Δ T Δ time Δ t = (68 -33) C 60 sec = 0.58 C / sec 60 40 20 TIME / mins 0 8 4 2 6

  11. Temp / C 100 Bunsen power: (assuming no energy loss) Δ U = m c Δ T Δ t Δ t = 80 Gradient = Δ temp = Δ T Δ time Δ t = (68 -33) C 60 sec = 0.58 C / sec 60 40 20 TIME / mins 0 8 4 2 6

  12. Temp / C 100 Bunsen power: (assuming no energy loss) Δ U = m c Δ T Δ t Δ t = 0.05 x 4200 x 0.58 = 80 Gradient = Δ temp = Δ T Δ time Δ t = (68 -33) C 60 sec = 0.58 C / sec 60 40 20 TIME / mins 0 8 4 2 6

  13. Temp / C 100 Bunsen power: (assuming no energy loss) Δ U = m c Δ T Δ t Δ t = 0.05 x 4200 x 0.58 = 121 W 80 Gradient = Δ temp = Δ T Δ time Δ t = (68 -33) C 60 sec = 0.58 C / sec 60 40 20 TIME / mins 0 8 4 2 6

More Related