Čonsider the reaction of NO and Cl2 to produce NOC1.a) What is AS°(system) for this reaction and does it change with temperature?b) Does AS°(surroundings) change with temperature? How about AS°(universe)?c) Do exothermic reactions always lead to positive values of AS° (universe)?d) Is the NO + Cl2 reaction spontaneous at 298 K? At700 K?

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A‚H°[NOC1(g)] = 51.72 kJ/mol
A¡H°[NO(g)] = 90.29 kJ/mol
A;H°[Cl2(g)] = 0 kJ/mol
S'[NOCI(g)] = 261.8 J/mol · K
SINO(g)] = 210.76 J/mol · K
S'[Cl2 (g)] =
= 223.08 J/mol · KI
Transcribed Image Text:A‚H°[NOC1(g)] = 51.72 kJ/mol A¡H°[NO(g)] = 90.29 kJ/mol A;H°[Cl2(g)] = 0 kJ/mol S'[NOCI(g)] = 261.8 J/mol · K SINO(g)] = 210.76 J/mol · K S'[Cl2 (g)] = = 223.08 J/mol · KI
Consider the reaction of N0 and Cl2 to produce
NOCI.a) What is AS°(system) for this reaction
and does it change with temperature?b) Does
AS°(surroundings) change with temperature?
How about AS°(universe)?c) Do exothermic
reactions always lead to positive values of AS°
(universe)?d) Is the NO + Cl2 reaction
spontaneous at 298 K? At700 K?
Transcribed Image Text:Consider the reaction of N0 and Cl2 to produce NOCI.a) What is AS°(system) for this reaction and does it change with temperature?b) Does AS°(surroundings) change with temperature? How about AS°(universe)?c) Do exothermic reactions always lead to positive values of AS° (universe)?d) Is the NO + Cl2 reaction spontaneous at 298 K? At700 K?
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