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2.13 Calculate the reaction enthalpy, entropy, and free energy, AH°r, AS°r, and AGºr, for the amidation of glutamate to glutamine (1) at standard temperature, (2) at 37°C, and (3) at 75°C (a) taking into account the temperature dependence of AH and AS, and (b) assuming that AH and AS are temperature-independent. What can you conclude about the importance of Cp? What does the result mean for organisms that live at moderate temperature (37°C; mesophilic organisms) and

2.13 Calculate the reaction enthalpy, entropy, and free energy, AH°r, AS°r, and AGºr, for the amidation of glutamate to glutamine (1) at standard temperature, (2) at 37°C, and (3) at 75°C (a) taking into account the temperature dependence of AH and AS, and (b) assuming that AH and AS are temperature-independent. What can you conclude about the importance of Cp? What does the result mean for organisms that live at moderate temperature (37°C; mesophilic organisms) and

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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2.13 Calculate the reaction enthalpy, entropy, and free energy, AH°,, ASº,, and AG°,, for the amidation of glutamate to glutamine (1) at standard temperature, (2) at 37°C, and (3) at 75°C (a) taking into account the temperature dependence of AH and AS, and (b) assuming that AH and AS are temperature-independent. What can you conclude about the importance of Cp? What does the result mean for organisms that live at moderate temperature (37°C; mesophilic organisms) and thermophilic organisms that live at 75°C? Glutamine: AH°; = -826 kJ mol², Cp,m = 184 J mol1 K1, Sm = 195 J mol1 K1 f%3= Glutamate: AH°; = -1010 kJ mol1, Cp,m = 175 J mol1 K1, Sm = 188 J mol1 K1 H2O: AH°¡ = -290 kJ mol1, Cp,m = 75 J mol1 K1, Sm = 70 J mol1 K1 NH,*: AH°; = -133 kJ mol1, Cp,m = 80 J mol1 K1, Sm = 113 J mol1 K1 %3D
Transcribed Image Text:2.13 Calculate the reaction enthalpy, entropy, and free energy, AH°,, ASº,, and AG°,, for the amidation of glutamate to glutamine (1) at standard temperature, (2) at 37°C, and (3) at 75°C (a) taking into account the temperature dependence of AH and AS, and (b) assuming that AH and AS are temperature-independent. What can you conclude about the importance of Cp? What does the result mean for organisms that live at moderate temperature (37°C; mesophilic organisms) and thermophilic organisms that live at 75°C? Glutamine: AH°; = -826 kJ mol², Cp,m = 184 J mol1 K1, Sm = 195 J mol1 K1 f%3= Glutamate: AH°; = -1010 kJ mol1, Cp,m = 175 J mol1 K1, Sm = 188 J mol1 K1 H2O: AH°¡ = -290 kJ mol1, Cp,m = 75 J mol1 K1, Sm = 70 J mol1 K1 NH,*: AH°; = -133 kJ mol1, Cp,m = 80 J mol1 K1, Sm = 113 J mol1 K1 %3D
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