Unit 9 Review Sheet KEY

Unit 9 Review Sheet KEY - Name: _KEY_ Date: _ WKST #4:...

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Name: ____ KEY _________________________________ Date: ____________ WKST #4: Thermodynamics Review (20 points) Period: __________ 1. Draw the potential energy diagrams for an endothermic reaction and an exothermic reaction. Label the change in enthalpy, activation energy, transition state, reactants and products. Exothermic Endothermic 2. Complete the chart below about endothermic and exothermic reactions. Endothermic Exothermic Energy of the system Increases (products have more energy than reactants) Decreases (products have less energy than reactants) Temperature of surroundings Decreases Increases Energy of the surroundings Decreases (lost to the system) Increases (released by the system) Energy of products vs. energy of reactants? Energy of products is more than reactants Energy of products is less than reactants H value? Positive Negative 3. A calorimeter is set up to determine the specific heat of a peanut. The peanut is burned, and it provides enough energy to heat 30.0 g of water 12 ºC.
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This note was uploaded on 01/01/2012 for the course CHEM 101 taught by Professor Donahue during the Spring '11 term at Long Island U..

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Unit 9 Review Sheet KEY - Name: _KEY_ Date: _ WKST #4:...

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