主要贊助單位
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Reactions & Rates 化學反應和反應速率
|
原子與分子的碰撞促使化學反應產生。以不同的反應物、濃度與溫度設計實驗，何時反應達到可逆？什麼因素會影響反應速率？ 翻譯者： 謝祿適 (2009) 江易原 (2010) 
|
教學資源
主要課程
- Reaction
- Kinematics
- 濃度
- Equilibrium
學習目標
- Explain why and how a pinball shooter can be used to help understand ideas about reactions.
- Describe on a microscopic level what contributes to a successful reaction (with illustrations).
- Describe how the reaction coordinate can be used to predict whether a reaction will proceed or slow.
- Use the potential energy diagram to determine: The activation energy for the forward and reverse reactions; The difference in energy between reactants and products; The relative potential energies of the molecules at different positions on a reaction coordinate.
- Draw a potential energy diagram from the energies of reactants and products and activation energy.
- Sketch how the number of reactants and products will change as a reaction proceeds.
- Explain how they know that a system has reached equilibrium from a graph of number of reactants and products versus time.
- Predict how raising or lowering the temperature will affect a system in the equilibrium position.
- Describe the relative sizes of the forward and reverse rates at equilibrium.
- Explain what effects whether the equilibrium position favors the products or the reactants.
- Predict how addition of a reactant or product will affect the forward and reverse reaction rates, and once this new system reaches equilibrium how the reactant and product concentrations will compare to the original system at equilibrium.
- Compare graphs of concentration vs. time to determine which represents the fastest or slowest rate.
老師的小技巧
老師的小技巧 (pdf) 亦包含由 PhET 團隊所提出的小技巧
教學點子
您可以 登錄您的點子或是活動
翻譯版本：
| 語言 | 語言 (已翻譯) | 模擬教學主題 | ||
|---|---|---|---|---|
| 土耳其語 | Türkçe | Reaksiyonlar & Oranlar | 開 始 | 下 載 |
| 丹麥語 | Dansk | Reaktioner og størrelser | 開 始 | 下 載 |
| 匈牙利語 | magyar | Reakciók: sebesség & egyensúly | 開 始 | 下 載 |
| 西班牙語 | español | Reacciones y Velocidades | 開 始 | 下 載 |
| 希伯來語 | עברית | תגובות וקצבים | 開 始 | 下 載 |
| 希臘語 | Ελληνικά | Αντιδράσεις και Ταχύτητα Αντίδρασης | 開 始 | 下 載 |
| 波斯語 | Persian | واكنش ها و سرعت ها | 開 始 | 下 載 |
| 波蘭文 | polski | Reakcje i ich szybkości | 開 始 | 下 載 |
| 法語 | français | Réaction et cinétique | 開 始 | 下 載 |
| 阿拉伯語 | العربية | التفاعلات وسرعتها(معدلها) | 開 始 | 下 載 |
| 阿拉伯語, 沙烏地阿拉伯 | العربية (السعودية) | التفاعلات وسرعتها(معدلها) | 開 始 | 下 載 |
| 英語 | English | Reactions & Rates | 開 始 | 下 載 |
| 高棉語 | Khmer | ប្រតិកម្ម និងល្បឿន | 開 始 | 下 載 |
| 荷蘭語 | Nederlands | Reacties en reactiesnelheid | 開 始 | 下 載 |
| 喬治亞語 | Georgian | რეაქციები და შედეგები | 開 始 | 下 載 |
| 斯拉維尼亞文 | Slovenščina | Reakcije in hitrosti reakcij | 開 始 | 下 載 |
| 斯洛伐克文 | Slovenčina | Reakcie & Hodnoty | 開 始 | 下 載 |
| 越南語 | Tiếng Việt | Phản ứng và tốc độ phản ứng | 開 始 | 下 載 |
| 塞爾維亞文 | Српски | ХЕМИЈСКЕ РЕАКЦИЈЕ И ПРОМЕНЕ | 開 始 | 下 載 |
| 愛沙尼亞語 | Eesti | Reaktsioonid ja nende hindamine | 開 始 | 下 載 |
| 瑞典文 | svenska | Reaktioner & reaktionshastigheter | 開 始 | 下 載 |
| 義大利語 | italiano | Reazioni e velocità di reazione | 開 始 | 下 載 |
| 葡萄牙文 | português | Reações & taxas | 開 始 | 下 載 |
| 葡萄牙文 (巴西) | português (Brasil) | Reações e Taxas | 開 始 | 下 載 |
| 韓語 | 한국어 | 반응과 반응속도 | 開 始 | 下 載 |
| 簡體中文 | 中文 (中国) | 化学反应平衡 | 開 始 | 下 載 |
軟體需求
| Windows | Macintosh | Linux |
|---|---|---|
|
Microsoft Windows
XP/Vista/7 Sun Java 1.5.0_15 or later |
OS 10.5 or later
Sun Java 1.5.0_19 or later |
Sun Java 1.5.0_15 or later |
榮譽榜
| 設計團隊 | 第三方諮詢 | 感謝 |
|---|---|---|
|