Its True or False 44. When this reaction is carried out at constant volume at room...
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
A chemical reaction was carried out at 25 °C (room temperature) and under constant pressure. At equilibrium, the change in free energy was measured as −3 kcal/mol, and the reaction released 5 kcal/mol of heat, as measured by calorimetry. Calculate the change in entropy that accompanied the reaction
Classify each of the statements as true or false. True False Answer Bank The entropy of a substance increases when a liquid vaporizes to a gas at any temperature. Entropy decreases as the temperature increases. An exothermic reaction is always spontaneous. Product formation is always favored in a reaction with a negative AH° and a negative AS. For an endothermic reaction, a decrease in temperature results in a decrease in the equilibrium constant. A reaction will have an equilibrium constant...
gu3eous Caide ahd liquid gascods Calon dioxide ahd liquid water. (5 pts.) How much heat is release per mole of ethanol combusted when the reaction is carried out at A) standard conditions? (5 pts.) in nntronu of the surroundings ner mole of ethanol combusted when the gu3eous Caide ahd liquid gascods Calon dioxide ahd liquid water. (5 pts.) How much heat is release per mole of ethanol combusted when the reaction is carried out at A) standard conditions? (5 pts.)...
Consider the reaction listed below along with the accompanying thermodynamic data, carried out at 25 °C and 1 atm: 2SO2(g) + O2(g) ↔ 2SO3(g) Substance ∆Hf° (kJ/mol) S° (J/K • mol) SO2(g) -297 248 O2(g) 0 205 SO3(g) -396 257 A.Calculate ∆H°. B. Calculate ∆S°. C. Calculate ∆G°. Is this reaction spontaneous? Briefly explain. D. At what temperature will this reaction first become spontaneous? E. Calculate the equilibrium constant for this reaction.
You perform three different reactions at constant volume and note the heat associated with the three reactions are equal. Reaction 1 produces gas, reaction 2 consumes it and reaction 3 has no gaseous substances as reactants or products. Which statement below is true? Note: Greatest refers to the value, not the magnitude, so -2 is greater than -5 and 1 is greater than both. Select one: a. The internal energy change is greatest for the reaction consuming gas and smallest...
c) The condensation of water vapor d) The formation of CeHe() from its elements in their standard states 7. Consider the following data: C H R) -84.7 -32.9 CO(g) -393.5 -394.4 HaO(I) AH°, (kJ/mole) AG (kJ/mole) -285.9 f -237.2 a) Calculate the entropy change for the combustion of 1.0 mole of C,H (g) at 25°C. b) Are the products more or less ordered than the reactants at 25°C? c) Is the reaction spontaneous at 25°C? d) What is the maximum...
how Pannotia formed and is there any fossil found in One mole of an ideal gas expanded isothermally at 298 K until its volume is tripled. Find the values of ASgas and ASotal under the following conditions a) Expansion is carried out reversibly b) Expansion is carried out irreversibly where 836 J of heat is less absorbed than in (a) c) Expansion is free A reaclib filecl A reaction is determined to have a positive AH and a negative AS°....
1. Mark with T (True) or F (False) (2 points each) • A Joule Thompson experiment corresponds to a process with constant enthalpy • The state functions (U.H.G.A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi ronment • The standard enthalpy of formation for any pure element in its reference state is temperature dependent • The phase...
Please answer true or false and explain why for each of them. Thank you 1. Mark with T (True) or F (False) (2 points each) • Joule Thompson experiment corresponds to process with constant enthalpy. . The state functions (U.H,G,A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi- ronment. . The standard enthalpy of formation for any...