Unit 10 Review Sheet KEY

Unit 10 Review Sheet KEY - Name: _KEY_ Date: _ WKST #6:...

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Name: ___ KEY _________________________________ Date: ____________ WKST #6: Thermochemistry Review Sheet (20 points) Period: __________ 1. What do we know about a reaction if: a. + G nonspontaneous b. – G spontaneous c. + S inc. entropy d. – S dec. entropy e. + H endothermic f. H exothermic 2. If a reaction requires energy and increases entropy, it will be spontaneous at HIGH temps. If a reaction releases energy and decreases entropy, it will be spontaneous at LOW temps. If a reaction releases energy and increases entropy, it will be spontaneous at ALL temps. If a reaction requires energy and decreases entropy, it will be spontaneous at NO temps. 3. Will S be positive or negative in the examples below? a. Steam condenses - b. Separating a mixture - c. Dissolving salt in water + d. Naphthalene sublimes + e. O 2 + 2 H 2 2 H 2 O - f. Vapor is heated + 4. Given the following reaction a 298 K and 1 atm and corresponding thermochemical data: Al 2 O 3
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Unit 10 Review Sheet KEY - Name: _KEY_ Date: _ WKST #6:...

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