A sample of carbon is burned in a calorimeter. If the calorimeter absorbs 81 J/K during the reaction and the universe absorbs 315 J/K, by how much did the entropy of the sample change? The equation relating the entropy change in a calorimeter to that in the sample is ASuniverse = ASample + AS calorimeter where ASuniverse is the overall entropy change in the universe, ASamole is the entropy change of the sample, and ASalorimeter is the entropy change of the calorimeter. J/K

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A sample of carbon is burned in a calorimeter. If the calorimeter absorbs 81 J/K during the reaction and the universe absorbs 315 J/K, by how much did the entropy of the sample change? The
equation relating the entropy change in a calorimeter to that in the sample is AS
Suniverse
+ As,
AS sample
+ AS calorimeteri where ASniverse
is the overall entropy change in the universe, AS sample
is the
entropy change of the sample, and As calorimeter is the entropy change of the calorimeter.
4.0
J/K
MacBook A
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Transcribed Image Text:A sample of carbon is burned in a calorimeter. If the calorimeter absorbs 81 J/K during the reaction and the universe absorbs 315 J/K, by how much did the entropy of the sample change? The equation relating the entropy change in a calorimeter to that in the sample is AS Suniverse + As, AS sample + AS calorimeteri where ASniverse is the overall entropy change in the universe, AS sample is the entropy change of the sample, and As calorimeter is the entropy change of the calorimeter. 4.0 J/K MacBook A DII F12 F10 80 888 F9 F8 F7 F4 F5 F2 F3 F1 & # $4 4 P E IT Q K F G C V B 36 36 option command option command * 00 R DI
The enthalpies of reaction for a set of reaction steps are as follows.
AH, = -417 kJ
AH, = 47.0 kJ
AH3 = -110. k]
AH4 = 942 kJ
%3D
%3D
%3D
If adding the chemical equations according to the expression below can produce the overall chemical equation, what is the overall enthalpy change for the reaction? (Include the sign of the value in
your answer.)
Overall Equation = Equation 1+ Equation 2 + Equation 3+ Equation 4
%3D
4.0
kJ
MacBook Air
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Transcribed Image Text:The enthalpies of reaction for a set of reaction steps are as follows. AH, = -417 kJ AH, = 47.0 kJ AH3 = -110. k] AH4 = 942 kJ %3D %3D %3D If adding the chemical equations according to the expression below can produce the overall chemical equation, what is the overall enthalpy change for the reaction? (Include the sign of the value in your answer.) Overall Equation = Equation 1+ Equation 2 + Equation 3+ Equation 4 %3D 4.0 kJ MacBook Air 80 888 F2 DII F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 #3 & 4 6. 8 Q E R T F G K V B M 36 mmand command Ootion * 00 D.
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