# March 18th activity.pdf - Thermochemistry Workshop Activity...

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Thermochemistry Workshop Activity - March 18thDue: 12:00am on Saturday, May 15, 2021To understand how points are awarded, read theGrading Policyfor this assignment.Exercise 7.35 - Enhanced - with FeedbackMISSED THIS?Read Section 7.2 (Pages 264 - 266)Suppose that a person eats a diet of 2386 Calories per day.Part AConvert this energy into joules.Express your answer using four significant figures..Thermochemistry Workshop Activity - March 18th...
Part BConvert this energy into kilojoules.Express your answer using four significant figures.
Part CConvert this energy into kilowatt-hours.Express your answer using four significant figures.Use the equalityto convert Calories to joules, then convert joules to kilowatt-hours usingas a conversionfactor.
Exercise 7.37 - Enhanced - with Feedback1 of 223/18/2021, 12:50 PM
MISSED THIS?Read Section 7.3 (Pages 267 - 272).WatchKCV 7.3.Part AWhich of the following is true of the internal energy of a system and its surroundings during an energy exchange with a negativeANSWER:ΔEsys?
CorrectA negativeindicates energy is lost from the reactants and gained by the surroundings. The same amount of energy that is lost by the systemis gained by the surroundings.Exercise 7.39 - Enhanced - with Feedback and HintsMISSED THIS?Read Section 7.3 (Pages 267 - 272).WatchKCV 7.3.Part AIdentify energy exchanges as primarily heat or work.Drag the items into the appropriate bins.Hint 1.Define heat and workA system can exchange energy with the surroundings through heat and work. To identify which parameters are associated with each, start by definingthe terms.Match the words in the left column to the appropriate blanks in the sentences on the right.ANSWER:ANSWER:

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Term
Spring
Professor
CHURCHILL
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