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
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)
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
8. You have discovered a new polymer. A monomer is shown below. To better understand its behavior you calculate its theoretical entropy. With careful measurements you find that it can be in 3 positions around the 1st bond in the chain, 2 around the 2nd bond, 1 around the 3rd bond and 3 around the 4th bond. Further, the ring can be in 4 different positions. What is the entropy in units of KB?