Question

Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv.

**Part A**

ΔH∘rxn=− 89 kJ , ΔSrxn=− 150 J/K , T= 310 K

Express your answer using two significant figures.

**Part B**

Δ*H*∘rxn=− 89 kJ , Δ*S*rxn=− 150 J/K , *T*=
758 K

Express your answer using one significant figure.

**Part C**

Δ*H*∘rxn=+ 89 kJ , Δ*S*rxn=− 150 J/K , *T*=
310 K

Express your answer using two significant figures.

**Part D**

Δ*H*∘rxn=− 89 kJ , Δ*S*rxn=+ 150 J/K , *T*=
403 K

Express your answer using two significant figures.

Answer #1

ΔSsurroundings = -ΔH∘rx/T

ΔSuniv = ΔSsys + ΔSsurr

ΔSsys = ΔSrxn

Part A

ΔSsys = - 150 J/K

ΔSsurr = 89 x 10^3 / 310 = 287 J/K

ΔSuniv = - 150 + 287 = 137 J/K

**ΔSuniv = 140 J/K**

Part B

ΔSsys = - 150 J/K

ΔSsurr = 89 x 10^3 / 758 = 117.4 J/K

**ΔSuniv = - 30 J/K**

Part C

ΔSsys = - 150 J/K

ΔSsurr = - 89 x 10^3 / 310 = - 287 J/K

**ΔSuniv = - 440 J/K**

Part D

Δ*H*∘rxn=− 89 kJ , Δ*S*rxn=+ 150 J/K , *T*=
403 K

ΔSsys = 150 J/K

ΔSsurr = 89 x 10^3 / 403 = 221 J/K

**ΔSuniv = 370 J/K**

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Given the values of ΔH∘rxn, ΔS∘rxn, and
T below, determine ΔSuniv.
Part A
ΔH∘rxn= 117 kJ , ΔS∘rxn=− 263 J/K ,
T= 291 K .
ΔSuniv=
−1.3•102
J/K
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Part B
ΔH∘rxn=− 117 kJ , ΔS∘rxn= 263 J/K ,
T= 291 K .
ΔSuniv=
J/K
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Part C
ΔH∘rxn=− 117 kJ , ΔS∘rxn=− 263 J/K ,
T= 291 K.
ΔSuniv=
J/K
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Part D
ΔH∘rxn=− 117 kJ ,...

Given the values of ΔH∘rxn, ΔS∘rxn, and
T below, determine ΔSuniv.
Part A
ΔH∘rxn= 115 kJ , ΔS∘rxn=− 263 J/K ,
T= 301 K .
ΔSuniv=
J/K
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Part B
ΔH∘rxn=− 115 kJ , ΔS∘rxn= 263 J/K ,
T= 301 K .
ΔSuniv=
J/K
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Up
Part C
ΔH∘rxn=− 115 kJ , ΔS∘rxn=− 263 J/K ,
T= 301 K .
ΔSuniv=
J/K
SubmitMy AnswersGive
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Part D
ΔH∘rxn=− 115 kJ , ΔS∘rxn=− 263 J/K ,
T= 557...

Calculate the change in Gibbs free energy for each of the
following sets of ΔHrxn, ΔSrxn, and
T.
Part A
ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T=
303 K
Express your answer using two significant figures.
ΔG =
kJ
Part B
ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T=
750 K
Express your answer using two significant figures.
ΔG =
kJ
Part C
ΔH∘rxn= 90. kJ , ΔSrxn=− 152 J/K , T=
303 K
Express your answer...

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Express your answers using three significant figures separated
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he thermodynamic properties for a reaction are related by the
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