subject
Physics, 17.09.2019 23:00 aylengarcia090

Since entropy is about how energy is shared, it is important to be able to identify places where energy can be put, or degrees of freedom. for example, a monoatomic atom moving in three dimensions in free space has three places to put energy: kinetic energy for motion in three independent directions, so it has three degrees of freedom. (because of quantum mechanics, a perfectly spherical atom cannot have any energy of rotation.) a rigid diatomic molecule can have three kinetic energy degrees of freedom and two rotational degrees of freedom since it can rotate about two different axes. (rotation about the axis through the center line of the molecule doesn't have any rotational energy, again because of quantum mechanics and the fact that it doesn't change when it makes that rotation.) both kinetic and potential energies can serve as degrees of freedom. to see more about these issues, see the reading example: degrees of freedom. for this problem assume that you can ignore gravity. a. consider a gas consisting of a box of n argon atoms. how many degrees of freedom do you expect the gas to have? b. consider a gas consisting of a box of n carbon-monoxide molecules. assuming that you can treat the bond as rigid, how many degrees of freedom do you expect the gas to have? c. if you consider a gas consisting of a box of n carbon-monoxide molecules. assuming that you can treat the bond is a spring that can only vibrate along the axis joining the two atoms (and not sideways), how many degrees of freedom do you expect the gas to have? d. consider a gas consisting of water vapor with n molecules having three atoms rigidly bonded in an angled shape (not a straight line). how many degrees of freedom do you expect this gas to have? e. on average, when thermal energy is added to a substance, the energy is shared equally among the degrees of freedom. since the temperature of a substance is proportional to the average energy in a degree of freedom, which of the substances do you expect would have the largest specific heat? (that is, which substance would change temperature the least in response to the addition of a given amount of thermal energy.) explain.

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:50, absolyoshi101
Which of the following represents an upside-down image?
Answers: 2
image
Physics, 22.06.2019 04:00, DragonLovely
19. explain why a magnet from your refrigerator could not be used to lift something as heavy as a car. (chapter 7 – pages 202-203) 20. can a magnet ever have a single pole? explain your answer. (chapter 7 – page 208) 21. what happens to the wavelength of a wave if the frequency is increased? (chapter 9 – pages 280-281) 22. an ocean wave has a wavelength of 10 m and a frequency of 4.0 hz. what is the velocity of the wave? show the appropriate equation from your book and show your work with units. (chapter 9 – page 282) 23. as you sit outside, the sound of a siren becomes lower in pitch. is the emergency vehicle moving away from or towards you? explain how you know. (chapter 10 – page 315-316) 24. why are two astronauts in space unable to hear one another? (chapter 10 – page 307) 25. explain in at least 3 sentences how electromagnetic waves form. (chapter 11 – page 338-339) 26. using the chart on page 345 in your textbook, what are the three types of electromagnetic wave with wavelengths shorter than those of visible light. give an example of each. (chapter 11 – pages 345-351) 27. explain why a leaf usually appears to be green, but a rose typically appears red. (chapter 12 – page 373) 28. what is the difference in light that is refracted compared to light that is reflected? think in terms of speed of light as well as what happens to light waves when they interact with a medium. (chapter 12 – pages 369-370) 29. how are concave and convex lenses different? (chapter 13 – page 408-410) 30. what type of mirror is used in rearview mirrors in cars? why is it important that these mirrors have the warning, “objects in mirror are closer than they appear.”? (chapter 13 – page 405)
Answers: 3
image
Physics, 22.06.2019 05:20, quan5379
Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
Answers: 2
image
Physics, 22.06.2019 17:00, Janae2918
Using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.
Answers: 2
You know the right answer?
Since entropy is about how energy is shared, it is important to be able to identify places where ene...

Questions in other subjects: