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Answer the following questions regarding the gaseous reaction of carbon monoxide and chlorine to create phosgene (COCI2): CO (g) + Cl2 (g) COCI2 (g) a) Without doing a calculation (i.e. using only the chemical reaction) do you expect the entropy change for this reaction to be positive or negative? From an entropic perspective, is this favorable or unfavorable? b) Calculate AS° at 298K for this reaction using the following thermodynamic data (AHº=-220 kJ.mol and and AG° =-206 kJ/mol c) Based on your calculation above, is this reaction always spontaneous, never spontaneous or sometimes spontaneous? If sometimes spontaneous, indicate whether this reaction is spontaneous at high or low temperatures. d) If this reaction is sometimes spontaneous, calculate the temperature at which the spontaneity of this reaction changes.

Answer the following questions regarding the gaseous reaction of carbon monoxide and chlorine to create phosgene (COCI2): CO (g) + Cl2 (g) COCI2 (g) a) Without doing a calculation (i.e. using only the chemical reaction) do you expect the entropy change for this reaction to be positive or negative? From an entropic perspective, is this favorable or unfavorable? b) Calculate AS° at 298K for this reaction using the following thermodynamic data (AHº=-220 kJ.mol and and AG° =-206 kJ/mol c) Based on your calculation above, is this reaction always spontaneous, never spontaneous or sometimes spontaneous? If sometimes spontaneous, indicate whether this reaction is spontaneous at high or low temperatures. d) If this reaction is sometimes spontaneous, calculate the temperature at which the spontaneity of this reaction changes.

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.39PAE: Through photosynthesis, plants build molecules of sugar containing several carbon atoms from carbon...
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Answer the following questions regarding the gaseous reaction of carbon monoxide and chlorine to create phosgene (COCI2): CO (g) + Cl2 (g) COCI2 (g) a) Without doing a calculation (i.e. using only the chemical reaction) do you expect the entropy change for this reaction to be positive or negative? From an entropic perspective, is this favorable or unfavorable? b) Calculate AS° at 298K for this reaction using the following thermodynamic data (AHº=-220 kJ.mol and and AG° =-206 kJ/mol) c) Based on your calculation above, is this reaction always spontaneous, never spontaneous or sometimes spontaneous? If sometimes spontaneous, indicate whether this reaction is spontaneous at high or low temperatures. d) If this reaction is sometimes spontaneous, calculate the temperature at which the spontaneity of this reaction changes.
Transcribed Image Text:Answer the following questions regarding the gaseous reaction of carbon monoxide and chlorine to create phosgene (COCI2): CO (g) + Cl2 (g) COCI2 (g) a) Without doing a calculation (i.e. using only the chemical reaction) do you expect the entropy change for this reaction to be positive or negative? From an entropic perspective, is this favorable or unfavorable? b) Calculate AS° at 298K for this reaction using the following thermodynamic data (AHº=-220 kJ.mol and and AG° =-206 kJ/mol) c) Based on your calculation above, is this reaction always spontaneous, never spontaneous or sometimes spontaneous? If sometimes spontaneous, indicate whether this reaction is spontaneous at high or low temperatures. d) If this reaction is sometimes spontaneous, calculate the temperature at which the spontaneity of this reaction changes.
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