For a particular reaction, ΔH = -32 kJ and ΔS =-98 J/K. Assume that ΔH and ΔS do not vary withtemperature. A) At wha...
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?
If the ΔH°rx and ΔS°rx for a gas phase chemical reaction are 419.53 kJ and -178.85 J/K respectively, determine ΔG°rx (in kJ) at 103.11 °C. Report your answer to two decimal places (i.e. 123.45 kJ). Assume that ΔH°rx and ΔS°rx do not vary with temperature.
For a particular reaction, ΔH° is -28.4 kJ and ΔS is -87.9 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
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?
2Ca(s)+O2(g) → 2CaO(s) ΔH∘rxn= -1269.8 kJ; ΔS∘rxn= -364.6 J/K For this problem, assume that all reactants and products are in their standard states. Calculate the free energy change for the reaction at 29 ∘C. Express your answer using four significant figures. Part A ΔG = ______ kJ Part B Is the reaction spontaneous? spontaneous OR nonspontaneous
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A: ΔH∘rxn=− 89 kJ , ΔSrxn=− 144 J/K , T= 306 K. Express your answer using two significant figures. Part B: ΔH∘rxn=− 89 kJ , ΔSrxn=− 144 J/K , T= 756 K. Express your answer using one significant figure. Part C: ΔH∘rxn=+ 89 kJ , ΔSrxn=− 144 J/K , T= 306 K. Express your answer using two significant figures. Part D: ΔH∘rxn=− 89 kJ , ΔSrxn=+ 144 J/K...
Part A: ΔH∘rxn= 121 kJ ; ΔS∘rxn=− 246 J/K ; T= 291 K Express your answer as an integer. Part B: ΔH∘rxn=− 121 kJ ; ΔS∘rxn= 246 J/K ; T= 291 K Express your answer as an integer. Part C: ΔH∘rxn=− 121 kJ ; ΔS∘rxn=− 246 J/K ; T= 291 K Express your answer as an integer. Part D: ΔH∘rxn=− 121 kJ ; ΔS∘rxn=− 246 J/K ; T= 600 K Express your answer as an integer. Part E: Predict whether...
For the reaction ΔH°=+61.14 kJ and ΔS° = +132 J/K at 25°C. At what For the reaction ΔH°=+61.14 kJ and ΔS° = +132 J/K at 25°C. At what minimum temperature will the reaction be spontaneous?minimum temperature will the reaction be spontaneous? Select one: a. 479 K b. 500 K c. 463 K d. 571 K e. 2904 K
For a reaction, ΔH = – 249 kJ and ΔS = – 278 J/K. What is the maximum temperature at which the reaction is spontaneous?
For a particular reaction at 205.1205.1 °C, ΔG=−45.90 kJ/molΔG=−45.90 kJ/mol, and ΔS=395.61 J/(mol⋅K)ΔS=395.61 J/(mol⋅K). Calculate ΔG for this reaction at −6.1−6.1 °C.