Homework Help is Here – Start Your Trial Now!
Science
Physics
10. 100 gm of water at 0 °C is mixed with an equal mass of water at 80 °C. Calculate the resultant increase in entropy.

10. 100 gm of water at 0 °C is mixed with an equal mass of water at 80 °C. Calculate the resultant increase in entropy.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
See similar textbooks
icon
Related questions
Question
1. How far from the earth must a body be along a line toward the sun so that the sun's gravitational pull balances the earth's? The sun is 9.3 x 10" miles away and its mass is 3.24 x 10° M. 2. (a) With what horizontal speed must a satellite be projected at 100 miles above the surface of the earth so that it will have a circular orbit about the earth? Take the earth's radius as 4000 miles. (b) What will be the period of rotation? 3. A block is on a horizontal surface which is moving horizontally with a simple harmonic motion of frequency two oscillations per second. The coefficient of static friction between block and plane is 0.50. How great the amplitude be if the block does not slip along the surface? 4. Show that the maximum tension in the string of a simple pendulum, when the amplitude 0, is small, is mg(1+0²). At what position of the pendulum is the tension a maximum? 5. (a) Prove that in simple harmonic motion the average potential energy equals the average kinetic energy when the average is taken with respect to time over one period of the motion, and that each average equals kA?/4. (b) Prove that when the average is taken with respect to position over one cycle, the average potential energy equals kA?/6 and the average kinetic energy equals kA?/3. (c) Explain physically why the two results above (a and b) are different. 6. A wave if frequency 500 cycles /sec has a phase velocity of 350 meters/sec. (a) How far apart are two points 60° out of phase? (b) What is the phase difference between two displacements at a certain point at times 103 sec apart? 7. What is the speed of a transverse wave in a rope of length 2 meters and mass 0.06 kg under a tension of 500 nt? 8. The equation of a transverse wave travelling in a rope is given by y = 60 cos (0.005x – 8.0t – 0.57), in which x and y are expressed in centimeters and t in seconds. Write down the equation of a wave that when added to the given one, would produce standing waves on the rope. 9. A Carnot's engine whose temperature of the source is 400 K takes 500 calories of heat at this temperature and rejects 400 calories of heat to the sink. What is the temperature of the sink? Calculate the efficiency of the engine. 10. 100 gm of water at 0 °C is mixed with an equal mass of water at 80 °C. Calculate the resultant increase in entropy.
Transcribed Image Text:1. How far from the earth must a body be along a line toward the sun so that the sun's gravitational pull balances the earth's? The sun is 9.3 x 10" miles away and its mass is 3.24 x 10° M. 2. (a) With what horizontal speed must a satellite be projected at 100 miles above the surface of the earth so that it will have a circular orbit about the earth? Take the earth's radius as 4000 miles. (b) What will be the period of rotation? 3. A block is on a horizontal surface which is moving horizontally with a simple harmonic motion of frequency two oscillations per second. The coefficient of static friction between block and plane is 0.50. How great the amplitude be if the block does not slip along the surface? 4. Show that the maximum tension in the string of a simple pendulum, when the amplitude 0, is small, is mg(1+0²). At what position of the pendulum is the tension a maximum? 5. (a) Prove that in simple harmonic motion the average potential energy equals the average kinetic energy when the average is taken with respect to time over one period of the motion, and that each average equals kA?/4. (b) Prove that when the average is taken with respect to position over one cycle, the average potential energy equals kA?/6 and the average kinetic energy equals kA?/3. (c) Explain physically why the two results above (a and b) are different. 6. A wave if frequency 500 cycles /sec has a phase velocity of 350 meters/sec. (a) How far apart are two points 60° out of phase? (b) What is the phase difference between two displacements at a certain point at times 103 sec apart? 7. What is the speed of a transverse wave in a rope of length 2 meters and mass 0.06 kg under a tension of 500 nt? 8. The equation of a transverse wave travelling in a rope is given by y = 60 cos (0.005x – 8.0t – 0.57), in which x and y are expressed in centimeters and t in seconds. Write down the equation of a wave that when added to the given one, would produce standing waves on the rope. 9. A Carnot's engine whose temperature of the source is 400 K takes 500 calories of heat at this temperature and rejects 400 calories of heat to the sink. What is the temperature of the sink? Calculate the efficiency of the engine. 10. 100 gm of water at 0 °C is mixed with an equal mass of water at 80 °C. Calculate the resultant increase in entropy.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Second law of thermodynamics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS