Which of the following statements about entropy is true? Select one: O a. The cntropy of a substance increases with a decrease in the number of moles. O b. The entropy of a substance will increase on going from a solid to a liquid to a gas. O C. The entropy of any substance increases as the temperature is lowered O d. The entr opy of a gas decreases with an increase in volume. O e. The entropy of a gas is independent of the volume of the gas.

Which of the following statements about entropy is true? Select one: O a. The cntropy of a substance increases with a decrease in the number of moles. O b. The entropy of a substance will increase on going from a solid to a liquid to a gas. O C. The entropy of any substance increases as the temperature is lowered O d. The entr opy of a gas decreases with an increase in volume. O e. The entropy of a gas is independent of the volume of the gas.

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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Please answer these 2 questions in an essay form.
Select the compound expected to have the greatest entropy at room temperature: a. HF b. HCl c. They all have the same entropy. d. HI e. HBr
is gas C. solid 3. Which of the following is a A. ripening of fruits B. liquid nonspontaneous process? C. coffee getting colder B. a ball rolling upwards D. a drop of ink dispersing in water 4. What happens to entropy when solid carbon dioxide (dry ice) sublimes? A. It decreases B. it increases C. It stays the same D. cannot be determined 5. What is the value for standard temperature and pressure or STP? A. 25°C and 10 atm B. 25°C and 1 atm C. 100°C and 1 atm D. 32°C and 10 atm 6. Who is the proponent of the Gibbs free energy? A. William Friedrich B. Guglielmo Marconi C. William Gibbs D. Janno Gibbs 7. When AG H2(g) = 130.6, 12 (s) = 116.7 and Hl (g) = 206.3 A. AS = +165.3 J/K B. AS = -165.3 J/K C. AS = -41 J/K D. AS = +453.6 J/K 9. What value of Gibbs free energy can we safely predict that the reaction is spontaneous at all temperatures? A. a negative value C. a positive value at a low temperature B. a positive value D. a positive value at a high temperature 10. What will be the…
1. answer question in pic pls
Which of the following combinations of values for AH and AS for a given process, indicate that the process is spontaneous at all temperatures? A. O Both AH and AS are positive. B. O Both AH and AS are negative. C. O AH is positive and AS is negative. D. O AH is negative and AS is positive.
What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC? (ΔHvaporization = 40.7 kJ/mol) Type in your answer as a whole number with no units.
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At 25 ?C the reaction from Part A has a composition as shown in the table below. Substance Pressure (atm) 3.75 C2H2(g) H2(g) C2H6(g) 5.25x10?2 What is the free energy change, ?G, in kilojoules for the reaction under these conditions? 4.75
Given that AH and AS for a reaction are both negative, the reaction will be O nonspontaneous at all temperatures. O spontaneous at all temperatures. O spontaneous at low temperatures and nonspontaneous at high temperatures. O nonspontaneous at low temperatures and spontaneous at high temperatures.
32. The enthalpy and entropy of vaporization of ethanol are 38.6 kJ/mol and 109.8 J/mol · K, respectively. What is the boiling point of ethanol, in °C?a. 352°Cb. 78.5°Cc. 2.84°Cd. 624°Ce. Not enough information is given to answer the question
Please help
5. Which of the following has a negative DS? A. Dissolve salt in water B. Heating chlorine vapors C. Heating a pure liquid D. Deposition of a gas to a solid 6. Which of the following has a negative DS? A. Melting ice B. Freezing liquid bromine C. Subliming a solid to a gas D. Evaporating water 7. What is defined as the phenomenon where the entropy of the universe increases in a spontaneous process and is constant in an equilibrium process? A. The law of spontaneity B. The 1st law of thermodynamics C. The 2nd law of thermodynamics D. The 3rd law of thermodynamics.