The temperature affect the equilibrium constant value . If with increase the temperature of a reaction the value of equilibrium constant decreases then the forward reaction is exothermic And if equilibrium constant value increases then the reaction is endothermic
So as here the the equilibrium constant value decreases with temperature ,the forward reaction will be exothermic And we know for a exothermic reaction the change in free energy (∆G° ) is negative
So option (e ) is the correct
5) For a particular chemical reaction it is found that the value for the equilibrium constant...
5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH> 0 b) AH 0 c) ASºren > 0 d) AS p < 0 e) AGO
urgent 5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AS rx < 0 b) ASX>0 c) AHºrxn < 0 d) AHºx>0 e) AGºrxn <0
5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH>0 b) AH® < 0 c) AS > 0 d) AS 0 e) AG < 0 6) When 0.0100 moles of dimethyl amine ((CH3)2NH) is added to 1.000 liters of water, the pH of the water increases above the value pH = 7.0 found for neutral solutions. Based on this,...
4) For which of the folling pure chemical substances will SⓇ = 0.0 J/mol K when T = 25.0°C? a) O2(g) b) Os(g) c) FeCl(s) d) Both a and e) None of the above 5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH 0 b) AH > 0 c) AS0 d) AS rx > 0 e) AGºrx <...
4) For which of the folling pure chemical substances will sº = 0.0 J/mol.K when T = 25.0°C? a) FeCl(s) b) O2(g) c) O3(g) d) Both b and c e) None of the above b) AS 5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AS rxn <0 0 c) AHºrx<0 d) AHºrx>0 <0 e) AGºran
1) What is the value for the van't Hoff factor (i) for Zn(NO:)? a) i = 1 b) i - 2 di-4 e)i>4 2) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If energy increases when a solution forms d) Botha and be e) Both a and 3) For a chemical reaction to...
Unless otherwise specified, you may assume T = 25.0 °C in all of the problems on this exam. Part 1. Multiple choice. Circle the letter corresponding to the correct answer. There is one and only one correct answer per problem. [6 points each] 1) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If...
Consider the equlibrium equilibrium constant enery levels for specieT Reaction Coordinate What best characterizes the reaction? us at only K< 1 at low temperature, K > 1 " high temperature at only o, AS 0, KI at any temperature Hco, AS 0, K 1 at any temperature s at both(H . o. K > l at low at low temperature, K < I tt ΔΗ< 0, AS < 0, K high temperature (1) e both The data' show the variation...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from room temperature to 100 degrees C, would the reaction be exothermic of endothermic? Why?
The equilibrium constant for a given reaction a. always increases with temperature. b. increases with temperature for endothermic reactions only. c. increases with temperature for exothermic reactions only. d. does not change with temperature. e. always decreases with temperature.