Practice: An energy efficient refrigerator uses 780 kWh of electrical energy per year. How many kilocalories of electricity does it use in three years?
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| Ch.1 Matter and Measurements | 4hrs & 24mins | 0% complete | ||
| Ch.2 Atoms and the Periodic Table | 5hrs & 14mins | 0% complete | ||
| Ch.3 Ionic Compounds | 2hrs & 12mins | 0% complete | ||
| Ch.4 Molecular Compounds | 2hrs & 18mins | 0% complete | ||
| Ch.5 Classification & Balancing of Chemical Reactions | 3hrs & 17mins | 0% complete | ||
| Ch.6 Chemical Reactions & Quantities | 2hrs & 36mins | 0% complete | ||
| Ch.7 Energy, Rate and Equilibrium | 3hrs & 33mins | 0% complete | ||
| Ch.8 Gases, Liquids and Solids | 3hrs & 34mins | 0% complete | ||
| Ch.9 Solutions | 4hrs & 11mins | 0% complete | ||
| Ch.10 Acids and Bases | 3hrs & 26mins | 0% complete | ||
| Ch.11 Nuclear Chemistry | 56mins | 0% complete | ||
| BONUS: Lab Techniques and Procedures | 1hr & 30mins | 0% complete | ||
| BONUS: Mathematical Operations and Functions | 47mins | 0% complete | ||
| Sections | |||
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| Nature of Energy | 6 mins | 0 completed | Learn |
| First Law of Thermodynamics | 7 mins | 0 completed | Learn |
| Endothermic & Exothermic Reactions | 7 mins | 0 completed | Learn |
| Bond Energy | 15 mins | 0 completed | Learn |
| Thermochemical Equations | 12 mins | 0 completed | Learn |
| Heat Capacity | 16 mins | 0 completed | Learn |
| Thermal Equilibrium (Simplified) | 8 mins | 0 completed | Learn |
| Hess's Law | 23 mins | 0 completed | Learn |
| Rate of Reaction | 11 mins | 0 completed | Learn |
| Energy Diagrams | 12 mins | 0 completed | Learn |
| Chemical Equilibrium | 7 mins | 0 completed | Learn |
| The Equilibrium Constant | 16 mins | 0 completed | Learn |
| Le Chatelier's Principle | 24 mins | 0 completed | Learn |
| Solubility Product Constant (Ksp) | 11 mins | 0 completed | Learn |
| Spontaneous Reaction | 10 mins | 0 completed | Learn |
| Entropy (Simplified) | 9 mins | 0 completed | Learn |
| Gibbs Free Energy (Simplified) | 18 mins | 0 completed | Learn |
Thermochemistry is the study of matter and energy associated with chemical reactions or physical changes.
Classification of Energy
Concept #1: Nature of Energy
Concept #2: Energy Conversion Factors
Example #1: Which of the following statements deals with potential energy with nonchemical energy associated?
Progress
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