Homework Answers
According to 2nd law energy can not be converted to work
with 100% efficiency.Some energy is always lost in the form of
heat.
Therefore, over a period of time energy is slowly depleted .
Life requires energy to exist.According to the above
argument some external energy is needed to
sustain life.This is not possible in closed system.
b) Sun is the main source of energy for life on earth.
Another source is geothermal energy(from center of earth)
Thank you :))
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22. Life cannot exist in a completely closed system (no energy or matter comes into or out of the...
Extension Questions 21. Are the terms exothermic and exergonic synonymous? Justify your answer wi...
Extension Questions 21. Are the terms exothermic and exergonic synonymous? Justify your answer with examples. Life cannot exist in a completely closed system (no energy or matter comes into or out of the system) 22. a. Explain why this is true based on the Second Law of Thermodynamics. b. The planet Earth is not a closed system. Ultimately, what is the source of all energy for life on Earth? 23. Consider a process where the increase in entropy of the...
PHYSICAL GEOGRAPHY WILLIAM MARSH Describe an example of an open system and a closed system on Earth. For the open system, describe the specific energy and matter that comes into and/or out of the sy...
PHYSICAL GEOGRAPHY WILLIAM MARSH Describe an example of an open system and a closed system on Earth. For the open system, describe the specific energy and matter that comes into and/or out of the system. For the closed system, describe why energy and matter stays within the system. Using Figure 2.7 and Figure 2.16 in the textbook as a reference, describe any patterns you see on Earth that can be categorized based on latitude or longitude. In other words, look...
If entropy can only increase in a closed system, then how can life grow more complex...
If entropy can only increase in a closed system, then how can life grow more complex over time on Earth? Doesn't this violate the 2nd Law of Thermodynamics? Explain
True or False (Problems 1 through 10) 1. The change in entropy of a closed system...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
8. Consider how the heavy elements that make up planets like the earth are formed. Which...
8. Consider how the heavy elements that make up planets like the earth are formed. Which of the following is most likely to be true about the origin of Earth? Earth arose around a very ancient star (our sun) that had had plenty of time to synthesize heavy elements. Earth arose in a region of our galaxy where few earlier stars formed so that the hydrogen fuel for our sun was abundant. Earth arose in a region that was very...
Write a 2 paragraph explanation of how energy is conserved in all closed systems, even when...
Write a 2 paragraph explanation of how energy is conserved in all closed systems, even when it seems like some of the energy disappears. Explain where the energy goes and why we cannot contain all of the energy in the system. Analyze why most people do not understand this concept and create an experiment or situation where you could show them this concept in real life (you cannot use a skatepark example.)
Can someone please help out with these questions? Thanks. 1. State the First Law of Thermodynamics...
Can
someone please help out with these questions? Thanks.
1. State the First Law of Thermodynamics 2. What are the sign conventions for the heat O and the work W . How is the First Law related to conservation of energy? 4. Define internal energy 5. Does internal energy depend on path, in other words how a system got to the state its in? 6. How does the First Law apply to weight gain? . What is an irreversible process?...
Chapter 7 1. What is the main source of energy for most living organisms? 2. What...
Chapter 7 1. What is the main source of energy for most living organisms? 2. What are the laws that gover the life and death of cells called? 3. Why is an organism's ability to exchange energy with its environment referred to as an open system? 4. What is entropy? 5. What is the second law of thermodynamics? Does the conversion of energy require the use of energy? 6. Define: a. Catabolism b. Anabolism c. Metabolism d. Exergonic e. Endergonic...
3. The Milky Way's Dark Matter Halo The Milky Way's rotation curve is approximately a constant, v...
3. The Milky Way's Dark Matter Halo The Milky Way's rotation curve is approximately a constant, v(r) ~220 km/s, for 5 20 kpc, This constant circular velocity cannot be explained by the observed distribution of luminous mass Instead, we propose that the Milky Way is embedded in a roughly spherical dark matter halo. (a) Calculate M(r), the enclosed mass of the spherical dark matter halo as a function of r in the range 5< T < 20 kpc, assuming the...
I cannot seem to figure it out. The standard Gibbs-free energy of a system is related...
I cannot seem to figure it out.
The standard Gibbs-free energy of a system is related to its equilibrium constant through the following equation. AG = R.T.In(K) In this equation R is the gas constant, T is the temperature, and the next to AG defines the conditions as standard ambient temperature and pressure, i.e. "SATP". (Answer the following questions to three significant figures.) (a) Given an equilibrium constant of 6.28 x 10-3, what is its standard Gibbs-free energy? 4.9 12.6...
Extension Questions 21. Are the terms exothermic and exergonic synonymous? Justify your answer with examples. Life cannot exist in a completely closed system (no energy or matter comes into or out of the system) 22. a. Explain why this is true based on the Second Law of Thermodynamics. b. The planet Earth is not a closed system. Ultimately, what is the source of all energy for life on Earth? 23. Consider a process where the increase in entropy of the...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
Can
someone please help out with these questions? Thanks.
1. State the First Law of Thermodynamics 2. What are the sign conventions for the heat O and the work W . How is the First Law related to conservation of energy? 4. Define internal energy 5. Does internal energy depend on path, in other words how a system got to the state its in? 6. How does the First Law apply to weight gain? . What is an irreversible process?...
Chapter 7 1. What is the main source of energy for most living organisms? 2. What are the laws that gover the life and death of cells called? 3. Why is an organism's ability to exchange energy with its environment referred to as an open system? 4. What is entropy? 5. What is the second law of thermodynamics? Does the conversion of energy require the use of energy? 6. Define: a. Catabolism b. Anabolism c. Metabolism d. Exergonic e. Endergonic...
3. The Milky Way's Dark Matter Halo The Milky Way's rotation curve is approximately a constant, v(r) ~220 km/s, for 5 20 kpc, This constant circular velocity cannot be explained by the observed distribution of luminous mass Instead, we propose that the Milky Way is embedded in a roughly spherical dark matter halo. (a) Calculate M(r), the enclosed mass of the spherical dark matter halo as a function of r in the range 5< T < 20 kpc, assuming the...
I cannot seem to figure it out.
The standard Gibbs-free energy of a system is related to its equilibrium constant through the following equation. AG = R.T.In(K) In this equation R is the gas constant, T is the temperature, and the next to AG defines the conditions as standard ambient temperature and pressure, i.e. "SATP". (Answer the following questions to three significant figures.) (a) Given an equilibrium constant of 6.28 x 10-3, what is its standard Gibbs-free energy? 4.9 12.6...
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