3. For each of the following pairs of compounds, which do you think has the greater molar entropy under the same conditions (gases at the same T and P). (If you are unsure of the structures of some of these molecules, look them up in your organic text or use the internet. a. Co CO₂ d. pentane e. ethanol b. H₂O D₂0 neopentane (2,2-dimethylpropane) ethylene oxide c. propane f. butylamine cyclopropane pyrrolidine

3. For each of the following pairs of compounds, which do you think has the greater molar entropy under the same conditions (gases at the same T and P). (If you are unsure of the structures of some of these molecules, look them up in your organic text or use the internet. a. Co CO₂ d. pentane e. ethanol b. H₂O D₂0 neopentane (2,2-dimethylpropane) ethylene oxide c. propane f. butylamine cyclopropane pyrrolidine

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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14. Shown is the formation of iron oxide (rust!). Calculate the entropy of the reaction, AS reaction, of this enemy of car owners in Michigan. 4Fe(s) + 302(g) →2Fe2O3(s) AS reaction = Compound Fe(s) O2(g) Fe2O3(s) So formation (J/mol*K) 27.3 205.0 87.4
12. Comparing the formulas or states for each pair of substances, tell which you would expect to have the higher entropy per me at the same temperature, and explain why. a) NaCl(s) or CaO(s) b) Cl,(g) or P,(g)
Calculate the change in entropy that occurs in the system when 1.00 mole of diethyl ether (C,H1,0) condenses from a gas to a liquid at its normal boiling point (34.6°C). " ***
10.
Q7. For each reaction, predict the sign of entropy of system and find the value of ASuniv. a. 3NO (g) N₂O (g) + NO2 (g) b. P4 (g) +5 Oz (g) → P4010 (S) c. Combustion of ethane (C2H6) gas to form carbon dioxide and gaseous water.
6. Which of the following compounds has the highest entropy at 25°C? A. CO₂ (s) B. CH3CH₂OH (1) C. C₂H6 (g) D. S (s) E. H₂O (1)
2. Compute for the total entropy change (AS,ntu) of the reaction below in a room temperature of 293 K. 2Na (s) + Cl2 (g) - 2NACI (s) Substance Na (s) Cl2 (g) NaCl (s) S°U/mol.K) 51.30 223.1 72.10 AH (kJ/mol) -411.0
For which of the following processes would the entropy change be positive? A. I2(s) → I2(g) B. He(g) (1 atm) → He(g) (10 atm) C. Ag+(aq) + Br-(aq) → AgBr(s) D. Hg(l) (45oC) → Hg(l) (25oC) E. H2O(l) → H2O(s)
Refer to the attached photo. Thank you!
A) for the reaction MgCo3(s) ---> MgO (s) +CO2 we can say that it is a reaction a. spontaneous b. not spontaneous c.in balance d. indeterminate B) Which substance in the following pair of compounds must have the highest standard molar entropy? C2H2 (g) or C2H6(g) a.C2H2(g) b.C2H6 c.C2H2=C2H6(g) d. undetermined
Using standard entropy values (from the appendices of your text), calculate AS° for the following reactions. (See example 10.7 p 374 Zumdahl 8th edition.) C2H4(g) + H2(g) C2H6(9)
Give answer second question with explanation