Spontaneous and Non-Spontaneous Processes

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Questions

• What conditions are spontaneous processes trying to satisfy?
• Why are spontaneous processes irreversible?
• Why are all spontaneous processes not exothermic?
• Why do spontaneous processes increase entropy?
• Why is diffusion a spontaneous process?
• Why is an exothermic reaction spontaneous?
• Why is free energy affected by changes in temperature?
• Does ΔG = 0 at equilibrium?
• Is delta G zero at boiling point?
• How can I calculate delta G of vaporization?
• How is delta G related to the equilibrium constant?
• How is delta G affected by an increase in temperature?
• How does pH affect the change in free energy for a reaction?
• How does free energy relate to enzyme activity?
• How does free energy change with temperature?
• How does free energy change in an exergonic reaction?
• How does delta G change with pressure?
• How does delta G affect keq?
• How does concentration affect free energy?
• How can I calculate Gibbs Free Energy change?
• How do spontaneous processes affect entropy?
• How do enzymes affect free energy change?
• How can I calculate delta G of a reaction?
• How is free energy change calculated?
• Does free energy change with a catalyst?
• Does free energy affect the reaction rate?
• What is delta G?
• What is an example of a free energy practice problem?
• What is free energy?
• What are some examples of free energy?
• What are some common mistakes students make with non-spontaneous processes?
• What is an example of a non-spontaneous process practice problem?
• Question #b7db7
• Given : S(s) + O2(g) --> SO2 (g) Delta H= -296.1 kJ 2SO3(g) --> 2SO2(g) + O2(g) Delta H= 198.2 kJ How to find the Delta H for :2S(s)+3O2(g) --> 2SO3(g)?
• Question #ea374
• Question #1fad2
• Question #bcedf
• Which of the following reactions is/are spontaneous? (i) #Cl_2 + 2Br^(-) -> Br_2 + 2Cl^(-)# (ii) #Br_2 + 2I^(-) -> I_2 + 2Br^(-)#
• A #20*g# mass of oxygen gas reacts with excess #NO(g)#. How much #NO_2(g)# can be formed?
• How is entropy related to the spontaneity of a reaction?
• Are chemical reactions always spontaneous when #DeltaH# is negative and #DeltaS# is negative?
• What can be concluded about the reaction represented below in terms of spontaneity?
• Prove that for an ideal-gas reaction, #(dlnK_C^@)/(dT) = (DeltaU^@)/(RT^2)#?
• What is a spontaneous process? What are some examples?
• Question #406a2
• Are there still commercial quantities of sodium nitrates accessible to mining?
• What is a spontaneous endothermic reaction always?
• How can I do this problem, even though I am given #DeltaH# and #DeltaS# at the wrong temperature? For a certain reaction, #DeltaH_(rxn)^@ = . . . # and #DeltaS_(rxn)^@ = . . . # at #25^@ "C"#. Calculate #DeltaG_(rxn)^@# and #K_(eq)# at #37^@ "C"#?
• How can you determine if a reaction is non-spontaneous?
• Question #a5bb5
• What is the total pressure of the gases in the flask at this point?
• Part A What must be the temperature if the following reaction has ΔG0= -44.0 kJ , ΔH0=-24.8 kJ, and ΔS0=15.2 JK−1?
• Consider the following reaction; use the information here to determine the value of #\DeltaS_(surr)# at 398 K ... Will this reaction be spontaneous at this temperature?
• Calculate the #\DeltaG°_(rxn)# using the following information?
• Question #81c72
• Question #f0842
• What are the characteristics of spontaneous/nonspontaneous reactions?
• How do we calculate #DeltaG^@# for the reaction...? #Ca(OH)_2(s) + 2HCl(aq) rarr CaCl_2(aq) + 2H_2O(l)#