xBlackboard Learn G Determine The &rH; For The F × v G l Chegg.com kboard lawson
ID: 550449 • Letter: X
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xBlackboard Learn G Determine The &rH; For The F × v G l Chegg.com kboard lawsonstate.edu/webapps/portal/frameset.jsp?tab.group-courses&urle;%2Fwebapps%2Fblack board%2Fencute%2F My Institution Cours Take Test Chapter S- Reading Assessment Part 3 Take Test: Chapter 5- Reading Assessment - Part 3 Description This week's reading assessment will also be over material which is covered in Chapter S5, sections 5.6-5.7 Multiple attmpts are not allowe Instructions Although you may use your text during the quiz, in is strongly suggested that you have already previously familiarized yourself the chapter T concepes presented. It should be noted th require the student to not only read the contens within the chapter but also connect the ideas and very quantitat class AND examples presented in your text Multipie Not allowed. This test can only be taken once Attemmpts Question Completion Status. 16 17 18 19 20 Moving to another question will save this response. Question 9 calorimeter thatas ahet capacity of 9 83 kJC. What is Commbustion of 4.93 g of liquid benzene (C616) causes a temperature rise of 2o.C in a reaction? a. 206 Wesol-rxn b.41.8 kJ/mol-exn -418 kJ/mol-exn d.-127 × 103 makin 5 6 8Explanation / Answer
The temperature rise = 20.9 C
heat capacity of calorimeter = 9.83 kJ /C
The heat absorbed by calorimeter = heat capacity x temperature rise
= 9.83 kJ /c x 20.9C
=205.447 kJ
This heat is given by 4.93 g of benzene on combustion
One mole of benzene = 78g/mol
Thus 4.93 g of benzene gives 205.447kJ of heat
one mole =78g gives = 78 x 205.447 /4.93
= 3250.47 kJ /mol
= 3.25 x103 kJ/mol
thus option d is correct
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