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Unit 10 Review Sheet - Name Date WKST#6 Thermochemistry...

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Name: _________________________________________ Date: ____________ WKST #6: Thermochemistry Review Sheet (20 points) Period: __________ 1. What do we know about a reaction if: a. + G ____________ b. G ____________ c. + S ____________ d. S ____________ e. + H ____________ f. H ____________ 2. If a reaction requires energy and increases entropy, it will be spontaneous at ____________ temps. If a reaction releases energy and decreases entropy, it will be spontaneous at ___________ temps. If a reaction releases energy and increases entropy, it will be spontaneous at ___________ temps. If a reaction requires energy and decreases entropy, it will be spontaneous at ___________ 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:
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