Activity 3: Second Law of Thermodynamics Directions. Explain the Second Law of Thermodynamics to the following applications: 1. Refrigerators 2. Sweating in a crowded room 3. Melting of ice cube 4. Airconditioning units

Activity 3: Second Law of Thermodynamics Directions. Explain the Second Law of Thermodynamics to the following applications: 1. Refrigerators 2. Sweating in a crowded room 3. Melting of ice cube 4. Airconditioning units

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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Question

Activity 3: Second Law of Thermodynamics
Directions. Explain the Second Law of Thermodynamics to the following
applications:
1. Refrigerators
2. Sweating in a crowded room
3. Melting of ice cube
4. Airconditioning units

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CHOICES: A. If both statements are true B. If the 1st statement is false and the 2nd is true C. If the 1st statement is true and the 2nd is false D. If both statements are false
Sublimation is an example of a process for which a. ΔH is negative and ΔS is positive at all temperatures. b. ΔH, ΔS, and ΔG are positive at all temperatures. c. ΔH and ΔS are positive at all temperatures. d. ΔH is positive and ΔS is negative at all temperatures. e. ΔH, ΔS, and ΔG are negative at all temperatures.
Which of the following statements is TRUE regarding entropy? a. The entropy of the universe decreases after the occurrence of a spontaneous change. b. The entropy of any substance at temperatures above absolute zero is positive. c. The entropy is zero for a pure, perfect crystal at 0 °C. d.It is possible to determine the standard molar entropy of substances due to the second law of thermodynamics.
elect the ???? description about the second law of thermodynamics. * A. Measure of the randomness or disorder of the system B. Study of energy change of chemical or physical processes C. Matter and energy can be transferred between system and surrounding D. Energy can be converted from one to another but cannot be created or destroyed
Please answer question A and B.
A process that takes place so slowly as to be capable of reversing direction in response to an infinitesimally small change in conditions is defined as which of the following terms? O Nonspontaneous process Spontaneous change O Irreversible process Reversible process
TRUE OR FALSE ONLY NUMBER 8 TO 10 ONLY
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The following reaction is endothermic. 2NH3(g) → N2(g) + 3H2(g) This means the reaction A. will be spontaneous at high temperatures. B. will be spontaneous at low temperatures. C. is not spontaneous at any temperature. D. is spontaneous at all temperatures.
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.
The second law of thermodynamics states thatA. in a spontaneous process, the entropy of the universe increases.B. there is no disorder in a perfect crystal at 0 K.C. the total energy of the universe is always increasing.D. the total energy of the universe is constant.E. mass and energy are conserved in all chemical reactions.