Question

Ạ Cạrnot-efficiency engine operạtes between ạ hot reservoir mạintạined ạt the melting point of phosphorus (317.3...

Ạ Cạrnot-efficiency engine operạtes between ạ hot reservoir mạintạined ạt the melting point of phosphorus (317.3 K) ạnd ạ colder reservoir. The engine extrạcts 15.0 J of heạt from the phosphorus ạnd does 4.0 J of work during eạch cycle.

  1. How much heạt is exhạusted to the cold reservoir?
  2. Whạt is the ạctuạl efficiency of the engine?
  3. Since the engine cycle is ạ Cạrnot cycle, the ạctuạl efficiency equạls the Cạrnot efficiency. Knowing this, whạt is the temperạture of the colder reservoir?
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
2) A heat engine operates between two fixed temperature reservoirs, TH = 127 0C, TC =...
2) A heat engine operates between two fixed temperature reservoirs, TH = 127 0C, TC = 7 0C. In each cycle 5 J are extracted from the hot reservoir and 4 J are deposited into the cold reservoir. [ 0 0C = 273 K] (a) How much work is performed by the engine per cycle ? (4) (b) What is the efficiency of the engine ? (4) (c) What is the entropy change of the hot reservoir during one cycle...
What is the maximum efficiency of a heat engine that operates between 440°C and 120°C? ____________________%...
What is the maximum efficiency of a heat engine that operates between 440°C and 120°C? ____________________% If this engine generates 2000 J of mechanical energy, how many calories does it absorb from the hot reservoir, and how many calories does it transfer into the cold reservoir? ___________________cal (hot reservoir) ________________________cal (cold reservoir)
An engine has a hot reservoir temperature of 959 K and a cold reservoir temperature of...
An engine has a hot reservoir temperature of 959 K and a cold reservoir temperature of 600 K. The engine operates at four-fifths maximum efficiency. What is the efficiency of the engine?
The hot reservoir for a Carnot engine has a temperature of 933 K, while the cold...
The hot reservoir for a Carnot engine has a temperature of 933 K, while the cold reservoir has a temperature of 326 K. The heat input for this engine is 7160 J. The 326-K reservoir also serves as the hot reservoir for a second Carnot engine. This second engine uses the rejected heat of the first engine as input and extracts additional work from it. The rejected heat from the second engine goes into a reservoir that has a temperature...
10)When a metal bar is temporarily connected between a hot reservoir at Th and a cold...
10)When a metal bar is temporarily connected between a hot reservoir at Th and a cold reservoir at Tc, the energy transferred by heat from the hot reservoir to the cold reservoir is Qh. In this irreversible process, find expressions for the change in entropy of the following. (Use any variable or symbol stated above as necessary.) (a) the hot reservoir ΔSh =      (b) the cold reservoir ΔSc =      (c) the Universe ΔSU =   12)A Carnot engine operates...
A Carnot engine operates with an efficiency of 30%. The temperature of the cold reservoir remains...
A Carnot engine operates with an efficiency of 30%. The temperature of the cold reservoir remains at 10 degrees C A.) Calculate the temperature of the hot reservoir? B.) By how much does the temperature in the hot reservoir need to be raised so that the efficiency of the engine becomes 50%. Express your answer in degrees Celsius.
A Carnot engine of efficiency 43% operates with a cold reservoir at 28°C and exhausts 1210...
A Carnot engine of efficiency 43% operates with a cold reservoir at 28°C and exhausts 1210 J of heat each cycle. What is the entropy change for the hot reservoir?
We have a Carnot engine operating between a hot reservoir A and a cold reservoir B....
We have a Carnot engine operating between a hot reservoir A and a cold reservoir B. The work produced in the engine is used to power a flywheel. The hot reservoir is boiling water at p0 = 1 bar and Ta = 373K. The cold reservoir is a block of ice at p0 and Tb = 273K (latent heat = 3.3E5 J/kg). For the flywheel we know that Inertiamoment = 2kg m^2, mass = 6kg, c = 418J/kg K. Final...
Consider a heat engine which does 500 MJ of work over a 3 hour period and...
Consider a heat engine which does 500 MJ of work over a 3 hour period and operates between a hot reservoir of Th = 1250°C and a cold reservoir of Tc = 30.0°C. The engine is ideal and therefore running at its maximum efficiency. Show that the efficiency is 80.0%? How much heat: Comes from the hot reservoir? Is added to the cold reservoir? What is the rate of entropy change of the hot reservoir? Comment, with reasons, on the...
Problem 21.28 A Carnot engine whose hot-reservoir temperature is 420 ∘C has a thermal efficiency of...
Problem 21.28 A Carnot engine whose hot-reservoir temperature is 420 ∘C has a thermal efficiency of 40 % . Part A By how many degrees should the temperature of the cold reservoir be decreased to raise the engine's efficiency to 61 % ? Express your answer to two significant figures and include the appropriate units. ΔTcold =
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT