Problem 1E Problem 2E: Consider a sample of ideal gas initially in a volume V at temperature T and pressure P. Does the... Problem 3E Problem 4E Problem 5E: Indicate whether each of the following changes represents and increase or a decrease in entropy in a... Problem 6E: Arrange the entropy changes of the following processes, all at 25C , in the expected order of... Problem 7E Problem 8E Problem 9E: Indicate whether entropy increases or decreases in each of the following reactions. If you cannot be... Problem 10E: Which substance in each of the following pairs would have the greater entropy? Explain. at 75C and 1... Problem 11E: Without performing any calculations or using data from Appendix D, predict whether tS for each of... Problem 12E: By analogy to tH and tG how would you would you define standard entropy of formation? Which would... Problem 13E: Calculate the entropy change, S , for the following processes. If necessary, look up required data... Problem 14E: Calculate the entropy change, S , for the following processes. If necessary, look up repuired data... Problem 15E: IN Example 13-3, we dealt with vipH and vipH for water at 100C . Use data from Appendix D to... Problem 16E: Pentane is one of the most volatile of the hydrocarbons in gasoline. At 298.15 K, the following... Problem 17E Problem 18E: Estimate the normal boiling point of bromine. Br2, in the following way Determine vgH for Br2 from... Problem 19E Problem 20E: Refer to Figure 12-28 and equation (13.13) Which has the lowest Gibbs energy at 1 atm and 60C :... Problem 21E: Which of the following changes m a thermodynamic property would you expect to find for the reaction... Problem 22E: If a reaction can be carried out only because of an external influence, such as the use of an... Problem 23E: Indicate which of the four cases in Table 13.3 applies to each of the following reactions. If you... Problem 24E: Indicate which of the four cases in Table 13. Applies to each of the following reactions. If you are... Problem 25E: For the mixing of ideal gases (see Figure 13-3), explain whether a positive, negative, or zero value... Problem 26E: In Chapter 14,, we will see that, for the formation of an ideal solution of liquid components, S and... Problem 27E: Explain why (a) some exothermic reactions do not occur spontaneously, end (b) some reactions ii... Problem 28E: Explain why you would expect a reaction of the type AB(g)A(g)+B(g) always to be spontaneous at high... Problem 29E: From the data given in the following table, determine tS for the reaction NH2(g)+HCl(g)NH4Cl(s) .... Problem 30E: Use data from Appendix D to determine values of tG for the following rections at 25C... Problem 31E: At 298 K, for the reaction 2PCl2(g)+O2(g)2POCl2(l),tH=620.2kJmol1 and the standard molar entropies,... Problem 32E: At 298 K, for the reaction 2H+(aq)+2Br(aq)+2NO2(g)Br2(l)+2HNO2(aq), tH=61.6kJmol1 and the standard... Problem 33E: The following tG values are given for 25C . N2(g)+3H2(g)2NH3(g)rG=-33.0kJmol1... Problem 34E: The following tG values are given for 25C . SO2+3CO(g)COS(g)+2CO2(g)tG=24.6.4kJmol1... Problem 35E: Write an equation for the combustion of one mole of benzene, CgHg(l) , and use data from Appendix D... Problem 36E: Use molar entropies from Appendix D, together with the following data, to estimate the... Problem 37E: Assess the feasibility of the reaction N2H4(g)+2OF2(g)N2F4(g)+2H2O(g) by determining each of the... Problem 38E Problem 39E: For each of the following reactions, write down the relationship between K and either Kg or Kgt as... Problem 40E: H2(g) can be prepared by passing steam over hot iron 3Fe(s)+4H2O(g)Fe2O4(s)+4H2(g) a. Write an... Problem 41E: In the synthesis of gasesous methanol from carbon monoxide gas and hydrogen gas, the following... Problem 42E Problem 43E: Use data from Appendix D to determine K at 298 K for the reaction Problem 44E: Use data from Appendix D to establish for the reaction 2N2O4(g)+O2(g)2N2O3(g) : a. rG at 298 K for... Problem 45E: Use data from Appendix D to determine value at 298 K of tG and K for the following reactions. (Note:... Problem 46E Problem 47E: Use thermodynamic data at 298 K to decide in with direction the reaction Is spontaneous when the... Problem 48E: Use thermodynamic data at 298 K to decide m which direct on the reaction H2(g)+E2(g)2HCl(g)is... Problem 49E: For the reaction below, tG=27.07kJmol1 at 298 K. CH3CO2(aq)+H2O(l)CH3CO2(aq)+H3O+(aq) Use this... Problem 50E: For the reaction below, tG=29.05kJmol1 at 298 K. NH3(aq)+H2O(l)NH4+(aq)+OH(aq) Use this... Problem 51E: For the reaction 2NO(g)+O2(g)2NO2(g) all but one the following equations is correct. Which is... Problem 52E Problem 53E Problem 54E: For the reaction 2SO2(g)+O2(g)2SO2(g),Kz=2.8102M1 at 1000 K. What is tGat 1000 K? [Hint: What is K?]... Problem 55E Problem 56E Problem 57E Problem 58E Problem 59E: To establish the law of conservation of mass, Lavoisier carefully carefully studied the... Problem 60E: Currently, CO2 is being studied as a source of carbon atoms for synthesizing organic compounds. One... Problem 61E Problem 62E: A possible reaction for converting methanol to ethanol is CO(g)+2H2(g)+CH3OH(g)C2H5OH(g)+H2O(g) Use... Problem 63E: What must be the temperature W the following reaction has , tG=45.5kJmol1 , tH=24.8kJmol1 and... Problem 64E Problem 65E: The synthesis of ammonia by the Haber process occurs by the reactions N2(g)+3H2(g)2H2(g) at 400C .... Problem 66E: Use data from Appendix D to determine (a) tH,tS , and tG at 298 K and (b) K at 875 K for the water... Problem 67E Problem 68E: The blowing equilibrium constants have been determined for the reaction H2(g)+l2(g)=2Hl(g):K=50.0 at... Problem 69E: For the reaction N 2 O 4 ( g ) 2N O 2 ( g ) , H e =+57.2kJ mol 1 and K=0.113 at 298 K. a. What as K... Problem 70E Problem 71E Problem 72E Problem 73E: Titanium is obtained by the reduction of TiCl4(l) , which in turn is produced from the mineral... Problem 74E Problem 75E Problem 76E Problem 77IAE Problem 78IAE Problem 79IAE: Consider the following hypothetical process in which heat flows from a low to high temperature. For... Problem 80IAE: One mole of argon gas, Ar(g), undergoes a change in state from 25.6 L and 0.877 bar to 15.1 L and... Problem 81IAE Problem 82IAE: Consider the vaporization of water: H2O(l)H2O(g) at 100C , with H2O(l) in its standard state, but... Problem 83IAE Problem 84IAE Problem 85IAE: The following table shows the enthalpies end Gibbs energies of formation of three metal oxides at... Problem 86IAE Problem 87IAE Problem 88IAE Problem 89IAE Problem 90IAE Problem 91IAE Problem 92IAE Problem 93IAE Problem 94IAE Problem 95IAE Problem 96IAE: Use the following data to estimate, S[C6H6(g,1atm)] at 298.15 K. For CgHg(s,1atm) at its melting... Problem 97IAE Problem 98IAE Problem 99IAE Problem 100FP Problem 101FP: The graph shows how shows how tG varies with temperature for three different oxidation reactions:... Problem 102FP Problem 103FP Problem 104FP Problem 105SAE Problem 106SAE: Briefly describe each of the following ideas, methods, phenomena (a) absolute molar entropy. (b)... Problem 107SAE Problem 108SAE Problem 109SAE Problem 110SAE: The reaction, 2Cl2O(g)2Cl2(g)+O2(g)tH=161kJ , is expected to be (a) spontaneous at all temperatures;... Problem 111SAE Problem 112SAE Problem 113SAE Problem 114SAE Problem 115SAE Problem 116SAE Problem 117SAE: Which of the following graphs of Gibbs energy versus the extent of reaction represents an... Problem 118SAE: At room temperature and normal atmospheric pressure, is the entropy change of the universe positive,... format_list_bulleted