The entropy change for a certain nonspontaneous reaction at 85 ∘C is 154 J/K .
Is the reaction endothermic or exothermic?
What is the minimum value of ΔH (in kJ) for the reaction?
The entropy change for a certain nonspontaneous reaction at 85 ∘C is 154 J/K . Is...
A certain reaction has Ho = 79.70 kJ and So = -55.80 J/K. (a) Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is ---Select--- exothermic endothermic isothermic . (b) Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to ---Select--- a decrease an increase no change in the disorder of the system. (c) Calculate Go for this reaction at 298 K. If this value is less...
A certain constant-pressure reaction is barely nonspontaneous at 45 oC. The entropy change for the reaction is 78 J/L. Estimate the AH. 5
A certain reaction has ΔH°= -19.5 kJ/mol and ΔS°= +42.7 J/mol K a) Is the reaction exothermic or endothermic? b) Does the reaction lead to an increase or decrease in the disorder of the system? c) Calculate ΔG° for the reaction at 298K. d) Is the reaction spontaneous at 298 K under standard conditions?
Part 1.) A certain reaction has Ho = -26.10 kJ and So = 15.60 J/K. (a) Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is ---Select--- exothermic endothermic or isothermic . (b) Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to ---Select--- a decrease, an increase, or no change in the disorder of the system. (c) Calculate Go for this reaction at 298 K. If...
QUESTION 3 A certain constant-pressure reaction is barely nonspontaneous at 45 oC. The entropy change for the reaction is 78 J/L. Estimate the AH
What can be said about an endothermic reaction with a negative entropy change? The reaction is What can be said about an endothermic reaction with a negative entropy change? spontaneous at all temperatures. spontaneous at high temperatures. spontaneous at low temperatures. spontaneous in the reverse direction at all temperatures. nonspontaneous in either direction at all temperatures. Part B What can be said about an exothermic reaction with a negative entropy change? The reaction is What can be said about an...
For a particular reaction, ΔH∘=−28.4 kJΔH∘=−28.4 kJ and ΔS∘=−87.9 J/K.ΔS∘=−87.9 J/K. Assuming these values change very little with temperature, at what temperature does the reaction change from nonspontaneous to spontaneous?
A certain reaction has Delta H degree = -22.50 kJ and Delta S degree = -75.50 J/K. Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to in the disorder of the system. Calculate Delta G degree for this reaction at 298 K. If this value is less than 1 kJ/mol then enter 0 in...
What can be said about an Endothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d. spontaneous in the reverse direction at all temperatures. e. nonspontaneous in either direction at all temperatures. What can be said about an Exothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d....
A reaction has a ΔH°= 204.6 kJ and a ΔS°= -19.5 J/K. a. Given the sign and magnitude of ΔH and ΔS, will the reaction be spontaneous at all temperatures, nonspontaneous at all temperatures? Briefly explain your reasoning. b. Calculate the standard free energy change for the reaction at 298 K. c. Is the reaction spontaneous or nonspontaneous at 298 K?