Exercise Use IF-test function to state whether a reaction temperature make a system spontaneous or non-spontaneous. a. 550 °C b. 600 °C C. 650 °C Hints: 1. AG=AH-T AS = IF (AG°<0, "spontaneous", "non-spontaneous") At what temperature does the reaction become spontaneous? d. 250 °C e. CaCO2(s) CaO(s) + CO2(g) AH 140 kJ/mol, AS = 161 J/K Temp. (°C) Temp. (K) spont. vs. non-spont. 250 300 350 400 450 500 550 600 850 °C 650 700 750 800 850

Exercise Use IF-test function to state whether a reaction temperature make a system spontaneous or non-spontaneous. a. 550 °C b. 600 °C C. 650 °C Hints: 1. AG=AH-T AS = IF (AG°<0, "spontaneous", "non-spontaneous") At what temperature does the reaction become spontaneous? d. 250 °C e. CaCO2(s) CaO(s) + CO2(g) AH 140 kJ/mol, AS = 161 J/K Temp. (°C) Temp. (K) spont. vs. non-spont. 250 300 350 400 450 500 550 600 850 °C 650 700 750 800 850

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter16: Thermodynamics

Section: Chapter Questions

Problem 24E: Thermite reactions have been used for welding metal parts such as railway rails and in metal...

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