Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 19, Problem 20P
To determine
The explanation that his mother is correct to ground him for not cleaning his room, or is cleaning the room really impossible.
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The temperature in the deep interiors of some giant molecular clouds in the Milky Way galaxy is 50 K. Compare the amount of energy that would have to be transferred to this environment to the amount that would have to be transferred to a room temperature environment to bring about a 7.7 J/K increase in the entropy of the universe in each case.
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Chapter 19 Solutions
Physics for Scientists and Engineers
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- i docs.yougle.com/forms E Under resting conditions che bady energy is being useci as folows O 2/sby t1e livor end splee O 20 %by thr skeletal musules Uncer resting conditions :he body energy is being used as folows.* O 19% by the brair O. 15%. by the kirlnry. Wa can write the first law of thermodynamics as: * O AJ=A, -AW. O AU=A0 +Aw.. Ikcal = J O 1 Kcel -4184). O 1koa -11181) IMet = kcalm2* O 1 met = 50 Kca /m hr O 1 rmrl =55 Ke /m hr 011 Many seople with high blood pressure can lower their blood pressure into e healthy range or keep their numbers in a healthy range by making lifestyle changes. Talk with your health care team about Grtting at Irant 150 minutos af O nhysiral ar:tivity anch wrak (ahni.t 30 minutes a day, 5 dayn a wenk) O smaking Blood pressure is measured using two nurmbers: O 120/30 mmHg." O 135/75 A small percentage (- %) of the food is excrotod in the fucos and urine.* O b-15% b- 15% l'age 3 of 1 Back Next Kaver atmit paaawerda Yegh Cang a Fors The fon wes createc…arrow_forwardA system's "entropy" is (a) the amount of work the system can do. (b) the amount of microscopic work the system can do. (c) the amount of force the system could exert. (d) the amount of thermal energy in the system. (e) the amount of microscopic disorganization in the system.arrow_forwardA student rolls 2 dice (an object that is a cube with faces numbered 1-6). The dice are "fair," meaning that there is an equal chance that each lands on any of its 6 faces. Determine the entropy of the macrostate in which the sum of all the top dice faces equals 4. (For reference, in the cartoon the "top dice face" displays the number "2").arrow_forward
- (a) What is the unit of "specific entropy"? Is it an extensive property? (b) What is an isentropic process? Please give an example. (c) Explain the increase of entropy principle. (d) The entropy of a hot baked pizza decreases as it cools. Is this a violation of the increase of entropy principle? Explain.arrow_forwardHow many possible arrangements are there for a deck of 52 palying cards? (for simplicity, consider only the order of the cards, not whether they are turned upside- down, etc.) Suppose you start with a sorted deck and shuffle it repeatedly, so that all arrangements become "accessible". How much entropy do you create in the process?arrow_forwardConsider a system of 2 6-sided dice where the sum of the dice is the macrostate. What happens to the entropy of the 7 macrostate if you add a third 6-sided die?arrow_forward
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