Derive the van't Hoff equation, d in K AH° dT RT2 which gives the dependence of the equilibrium constant on temperature.* Here AH° is the enthalpy change of the reaction, for pure substances in their standard states (1 bar pressure for gases). Notice that if AH° is positive (loosely speaking, if the reaction requires the absorption of heat), then higher temperature makes the reaction tend more to the right, as you might expect. Often you can neglect the temperature dependence of AH°; solve the equation in this case to obtain AH° In K (T2) — In Kк (T1) — R 1 1 T1 T2
Derive the van't Hoff equation, d in K AH° dT RT2 which gives the dependence of the equilibrium constant on temperature.* Here AH° is the enthalpy change of the reaction, for pure substances in their standard states (1 bar pressure for gases). Notice that if AH° is positive (loosely speaking, if the reaction requires the absorption of heat), then higher temperature makes the reaction tend more to the right, as you might expect. Often you can neglect the temperature dependence of AH°; solve the equation in this case to obtain AH° In K (T2) — In Kк (T1) — R 1 1 T1 T2
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Derive the van't Hoff equation,
d in K
AH°
dT
RT2
which gives the dependence of the equilibrium constant on temperature.* Here
AH° is the enthalpy change of the reaction, for pure substances in their standard
states (1 bar pressure for gases). Notice that if AH° is positive (loosely speaking,
if the reaction requires the absorption of heat), then higher temperature makes the
reaction tend more to the right, as you might expect. Often you can neglect the
temperature dependence of AH°; solve the equation in this case to obtain
AH°
In K (T2) — In Kк (T1) —
R
1
1
T1
T2
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