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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Nature of Energy | 6 mins | 0 completed | Learn |
Kinetic & Potential Energy | 8 mins | 0 completed | Learn |
First Law of Thermodynamics | 7 mins | 0 completed | Learn |
Internal Energy | 8 mins | 0 completed | Learn |
Endothermic & Exothermic Reactions | 7 mins | 0 completed | Learn Summary |
Heat Capacity | 16 mins | 0 completed | Learn |
Constant-Pressure Calorimetry | 20 mins | 0 completed | Learn |
Constant-Volume Calorimetry | 8 mins | 0 completed | Learn |
Thermal Equilibrium | 9 mins | 0 completed | Learn |
Thermochemical Equations | 12 mins | 0 completed | Learn Summary |
Formation Equations | 9 mins | 0 completed | Learn |
Enthalpy of Formation | 12 mins | 0 completed | Learn Summary |
Hess's Law | 23 mins | 0 completed | Learn |
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Enthalpy (IGNORE) |
Thermochemistry is the study of matter and energy associated with chemical reactions or physical changes.
Example #1: Which of the following statements deals with potential energy with nonchemical energy associated?
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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