Question: In Example 20.4, a Carnot refrigerator requires a work input of only 230 J to extract 346 J of heat from the cold reservoir. Doesnt

In Example 20.4, a Carnot refrigerator requires a work input of only 230 J to extract 346 J of heat from the cold reservoir. Doesn’t this discrepancy imply a violation of the law of conservation of energy? Explain why or why not.

Step by Step Solution

★★★★★

3.36 Rating (174 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

No 576 J of heat energy is placed into the high temperature reservoir The net heat flow for the d... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related University Physics Questions!

(a) Show that the efficiency e of a Carnot engine and the coefficient of performance K of a Carnot refrigerator are related by K = (1 - e)/e. The engine and refrigerator operate between the same hot...

A Carnot engine operates between temperature levels of 600 K and 300 K. It drives a Carnot refrigerator, which provides cooling at 250 K and discards heal at 309 K. Determine a numerical value for...

A Carnot engine is coupled to a Carnot refrigerator so that all of the work produced by the engine is used by the refrigerator in extraction of beat from a heat reservoir at 0C at the rate of 35 kJ...

PROGRAM DESCRIPTION A heat engine acts by transferring energy from a warm region to a cool region of space and, in the process, converting some of that energy to mechanical work. The most efficient...

Consider the same problem as in Example 20.4, except that now we add two additional types of uncertainty. In Example 20.4, we assumed that the gross profit per unit was fixed at $1. Now, we assume...

Obj. 2 Example Exercise 20-3 Equivalent Units of Materials Cost The Bottling Department of Rocky Springs Beverage Company had 4,000 liters in the beginning work in process inventory (30% complete)....

You will implement a calculator using stacks and queues in C++. You may use the STL. Your calculator must support the following operators: Addition: + Subtraction: Multiplication: * Division: /...

The PSA cycle used in Example 20-4 does not produce pure hydrogen throughout the entire feed step. Brainstorm what can be done to change the cycle so that it will produce pure hydrogen during the...

Example 2 0 . 4 A motor and attached rod A B have the angular motions shown in Fig. 2 0 - 1 2 . A collar Figure 2 0 - 1 2 C on the rod is located 0 . 2 5 m from A and is moving downward along the rod...

The following payroll liability accounts are included in the ledger of Pettibone Company on January 1, 2010. FICA Taxes Payable ....... $ 540 Federal Income Taxes Payable .... 1,100 State Income...

Select the statements below which you feel violate your moral code. Discuss how, in different cultures, the very same activity can be seen as neutral or even a positive. Stealing money Showing your...

42. LO.3 Burt, the CFO of Amber, Inc., is granted stock options in 2012 that qualify as incentive stock options. In 2017, the rights in the stock become freely transferable and not subject to a...

When supply is inelastic, a 1 percent change in the price of a good will induce a _____________________ 1 percent change in the quantity supplied.

On the moon, g = 1.62 m/s 2 . If a 2-kg brick drops on your foot from a height of 2 m, will this hurt more, or less, or the same if it happens on the moon instead of on the earth? Explain. If a 2-kg...

When a car is hit from behind, the passengers can receive a whiplash. Use Newtons laws of motion to explain what causes this to occur?

To push a box up a ramp, is the force required smaller if you push horizontally or if you push parallel to the ramp? Why?

Statistics Question # 8 (Uniform) Assume that the flight time for a Unbed Arines flight boom Philadelphia to Dallas Iallows the uniform probability distribution bebetan 210 and 250 mrules. What is...

How do you think the confidence interval was presented in the study was calculated? Explain the mathematical concepts could you extract from this article I chose an article that was published in the...

Consider the following annual returns of Molson Coors and International Paper: Molson Coors International Paper Year 1 23.3 % 5.9 % Year 2 9.8 18.9 Year 3 43.5 0.7 Year 4 9.7 28.0 Year 5 17.6 12.5...