
(a)
The unknown pressure, volume and temperature.
(a)

Answer to Problem 16P
The unknown parameters have been tabulated.
State | |||
A | |||
B | |||
C | |||
D |
Explanation of Solution
Consider the first adiabatic process along D through A
Write the equation for adiabatic process,
Here
Rearrange (I) in terms of
Write the ideal gas equation
Here
Substitute for
Consider the isothermal process along C through D.
Therefore,
Here,
Write down the equation for isothermal process.
Here
Substitute (II) in (V)
Consider the adiabatic process along B through C.
Here
Substitute (VI) in (VII)
Consider the isothermal process along A through B
Substitute (IX) in (VIII)
Conclusion:
Substitute
Substitute
Therefore,
Substitute
Substitute
Substitute
Therefore,
State | |||
A | |||
B | |||
C | |||
D |
(b)
Energy, work done and change in internal energy involved in each steps.
(b)

Answer to Problem 16P
Energy, work done and change in internal energy has been tabulated.
Process | |||
A to B | |||
B to C | |||
C to D | |||
D to E |
Explanation of Solution
Consider the isothermal process along A through B.
Write the equation for energy transfer
Here
Then by first law of thermodynamics
Here
Consider the adiabatic process along B through C where
Here
Substitute
Consider the isothermal process along C through D
Consider the adiabatic process along D through A.
Conclusion:
Substitute
Substitute
Substitute
Substitute
Therefore
Process | |||
A to B | |||
B to C | |||
C to D | |||
D to E |
(c)
Efficiency of the engine.
(c)

Answer to Problem 16P
Efficiency is
Explanation of Solution
Write the equation for efficiency
Here
Conclusion:
Refer sub part b and substitute
Efficiency is
(d)
To prove that the efficiency is equal to Carnot efficiency.
(d)

Answer to Problem 16P
The efficiency is equal to Carnot efficiency.
Explanation of Solution
Write the equation for Carnot efficiency
Here
Conclusion:
Substitute
Thus, the efficiency is equal to Carnot efficiency
Want to see more full solutions like this?
Chapter 18 Solutions
Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
- A filmmaker wants to achieve an interesting visual effect by filming a scene through a converging lens with a focal length of 50.0 m. The lens is placed betwen the camera and a horse, which canters toward the camera at a constant speed of 7.9 m/s. The camera starts rolling when the horse is 36.0 m from the lens. Find the average speed of the image of the horse (a) during the first 2.0 s after the camera starts rolling and (b) during the following 2.0 s.arrow_forwardAnswer the question (Physics)arrow_forwardsolve smybolically and plug in numbers and solve at the endarrow_forward
- answer the question symbolically until you have to plug in numbers. show all work please.arrow_forwardWhat is the direction of the magnetic force on a NEGATIVE CHARGE that moves as shown in each of the six cases?arrow_forwardHi! I need help with these calculations for part i and part k for a physics Diffraction Lab. We used a slit width 0.4 mm to measure our pattern.arrow_forward
- Examine the data and % error values in Data Table 3 where the angular displacement of the simple pendulum decreased but the mass of the pendulum bob and the length of the pendulum remained constant. Describe whether or not your data shows that the period of the pendulum depends on the angular displacement of the pendulum bob, to within a reasonable percent error.arrow_forwardIn addition to the anyalysis of the graph, show mathematically that the slope of that line is 2π/√g . Using the slope of your line calculate the value of g and compare it to 9.8.arrow_forwardAn object is placed 24.1 cm to the left of a diverging lens (f = -6.51 cm). A concave mirror (f= 14.8 cm) is placed 30.2 cm to the right of the lens to form an image of the first image formed by the lens. Find the final image distance, measured relative to the mirror. (b) Is the final image real or virtual? (c) Is the final image upright or inverted with respect to the original object?arrow_forward
- Concept Simulation 26.4 provides the option of exploring the ray diagram that applies to this problem. The distance between an object and its image formed by a diverging lens is 5.90 cm. The focal length of the lens is -2.60 cm. Find (a) the image distance and (b) the object distance.arrow_forwardPls help ASAParrow_forwardPls help ASAParrow_forward
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning





