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Speed of Reaction

Speed of Reaction. Objectives. To identify the factors affecting rate of reaction. To explain how the factors affect rate of reaction. Good evening, thank you for tuning in to ZaZa TVWorks. This is Captain Hook speaking. Welcome to the 2001 Annual Cooking Competition.

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Speed of Reaction

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  1. Speed of Reaction

  2. Objectives • To identify the factors affecting rate of reaction. • To explain how the factors affect rate of reaction.

  3. Good evening, thank you for tuning in to ZaZa TVWorks. This is Captain Hook speaking. Welcome to the 2001 Annual Cooking Competition. Our winner will walk away with with a pair of tickets to Tokyo for 7D/6N. Before we proceed, let me introduce you to the honorable judge of the day, Mr Tham Chia Gwee.

  4. Image is not crucial. I have years of experience. I am in my best form tonight! I will be the champion tonight! Mr Bonfire Mr Chunky Who’s got the last laugh? Mr Teenie Miss ParTemp

  5. Here is a list of some of the items provided:

  6. Rules and regulations of competition • Contestants are given 1 hour to prepare 3 stipulated dishes. • Only completed dishes are qualified for this competition. • Decisions made by the judge are final. With that, the competition commence!

  7. Eh? Mr Teenie seems lost in his “bagful of experience”! What and how should I cook? Mr Chunky is seen with his family’s secret recipe. Mr Bonfire seems to be deep in thoughts. Miss ParTemp seems confident! Let us take a look at their progress:

  8. Mr Chunky uses small fire to barbeque chunky meat. Miss ParTemp uses big fire and small slices of ingredients. We will now invite Mr Tham Chia Gwee to go around to rate contestants’ performance. Mr Bonfire cooks chunky pieces of meat with big fire. Mr Teenie cooks the whole fish with big fire.

  9. As time goes by… tick tock….. tick tock ….tick tick tock tock… Tick tick tock tock…. Ding Dong… Time’s up…

  10. Only one of the contestants managed to complete all 3 dishes, within the given time frame. Can you guess who is it? Mr Bonfire Mr Teenie Mr Chunky Miss ParTemp

  11. Your task: • Explain why the winner is Miss ParTemp. • Write your answers here. • You can use the following links to assist you: • Molecules in motion • Temperature • Oil molecules in action • Particle Size

  12. http://mc2.cchem.berkeley.edu/Java/molecules/index.html Set the conditions of the containers as follow: Try to vary the temperatures of the two containers. What do you notice about the behavior of the particles at different temperatures?

  13. 3 cm Figure 1 Oil molecule Meat slice 1 cm 1 cm 1 cm Figure 2 What do you notice about the total volume and the total surface area between the two figures? Can you relate the total surface area and the rate of cooking?

  14. Your Answer is CORRECT! Superb Job!

  15. Your Answer is WRONG! Try again!

  16. The End

  17. Credits • Created by: Tan Wang Ling Sim Kwei Yen, Eunice • Reference: http://mc2.cchem.berkeley.edu/Java/molecules/index.html http://www.clipart.com http://www.animationfactory.com http://dgl.microsoft.com http://www.wpbschoolhouse.btinternet.co.uk/page03/3_31rates/3_31rates.htm

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