C6HW10a_16 - View Attempt 1/4 learn.uh.edu/webct/urw//ViewStudentAttempt.dowebct?attempt=5169001 VieZ Attempt 16 of unlimited Title C6HW10a

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Unformatted text preview: 12/18/11 View Attempt 1/4 learn.uh.edu/webct/urw/«/ViewStudentAttempt.dowebct?attempt=5169001« VieZ Attempt 16 of unlimited Title: C6HW10a Started: November 21, 2011 12:47 PM Submitted: November 21, 2011 1:16 PM Time spent: 00:28:54 Total score: 9/10 = 90% Total sc ore adjusted by 0.0 Maximum possible sc ore: 10 Done 1. Thermal dec omposition of rail c ar load of limestone to lime and c arbon dioxide requires 6.18 x 10 6 kJ of heat. Convert this energy to c alories. Express your answer in sc ientific notation: 1.25 x 10 3 = 1.25E3 with 3 signific ant figures. 1 c al = 4.184 J Student Response Correct AnsZer AnsZer: 1.48e9 1.48E9 (1.48 î 10 9 ) Sc ore: 1/1 2. What is the c hange in internal energy (in J) of a system that absorbs 0.615 kJ of heat from its surroundings and has 0.247 kc al of work done on it? Student Response Correct AnsZer A. 1.65 x 10 3 J B. –4.15 x 10 2 J C. 1.65 J D. 1.03 x 10 3 J E. -1.65 x 10 3 J Sc ore: 1/1 3....
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This note was uploaded on 12/18/2011 for the course CHEM 1372 taught by Professor Staff during the Spring '08 term at University of Houston.

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C6HW10a_16 - View Attempt 1/4 learn.uh.edu/webct/urw//ViewStudentAttempt.dowebct?attempt=5169001 VieZ Attempt 16 of unlimited Title C6HW10a

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