Question

1. Example 20.2 of text. A Carnot engine takes 2000 J of heat from a reservoir at 500 K, does some work, and discards some heat to a reservoir at 350 K. How much work does it do, how much heat is discarded, and what is its efficiency?

0 0
Add a comment Improve this question Transcribed image text
Answer #1

The heat discarded by the engine is: 0-4,Te_-(2000/) 350K =-1400 J T. From the first law, the work done by the engine is: W =

Add a comment
Know the answer?
Add Answer to:
A Carnot engine takes 2000 J of heat from a reservoir at 500 K, does some...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Problem 14-Carnot engine (14 points) The Carnot engine takes 1800 J of heat from a reservoir...

    Problem 14-Carnot engine (14 points) The Carnot engine takes 1800 J of heat from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. How much work does it do, how much heat is discarded, and what is its efficiency?

  • 6) A Carnot engine takes heat in from a reservoir at 400 K and discards heat...

    6) A Carnot engine takes heat in from a reservoir at 400 K and discards heat to a reservoir at 300 K. If the engine does 12,000 J of work per cycle, how much heat does it take in per cycle? a) 9000 b) 16,000 c)24,000 d) 48,000 e) none of the above

  • 3. An ideal Carnot engine has an input of 150 J of heat per cycle at...

    3. An ideal Carnot engine has an input of 150 J of heat per cycle at its high-temperature reservoir, which is maintained at 135 °C. The engine has a thermal efficiency of 22.0%. a. How much work does this engine do per cycle? b. How much heat does this engine output to its low-temperature reservoir per cycle? c. What is the temperature of the low-temperature reservoir? d. How many cycles would this engine have to go through to lift a...

  • A Carnot engine works between two heat reservoirs at temperatures Th = 360 K and Tc...

    A Carnot engine works between two heat reservoirs at temperatures Th = 360 K and Tc = 240 K. (a) What is its efficiency? % (b) If it absorbs 95 J from the hot reservoir during each cycle, how much work does it do? J (c) How much heat does it give off during each cycle? J (d) What is the COP of this engine when it works as a refrigerator between the same two reservoirs?

  • (a) During each cycle, a Carnot engine absorbs 772 J as heat from a high-temperature reservoir...

    (a) During each cycle, a Carnot engine absorbs 772 J as heat from a high-temperature reservoir at 388 K, with the low-temperature reservoir at 287 K. How much work is done per cycle? (b) The engine is then made to work in reverse to function as a Carnot refrigerator between those same two reservoirs. During each cycle, how much work is required to remove 1206 J as heat from the low-temperature reservoir? () Numbel 200.9590 UnitsT j UnitsT j (b)...

  • 4. A Carnot engine works between two heat reservoirs at temperatures Ty 300 K & Te...

    4. A Carnot engine works between two heat reservoirs at temperatures Ty 300 K & Te -77.0 a. What is its efficiency? b. If it absorbs c. How much heat does it release to the low- d. Wha 100 J of heat from the hot reservoir during each cycle, how much work does it do? t is the coefficient of performance of this engine when it works as a refrigerator between temperature reservoir during each cycle? these two reservoirs?

  • An engine removes 350 J from a reservoir at 390 K and exhausts 300 J to...

    An engine removes 350 J from a reservoir at 390 K and exhausts 300 J to a reservoir at 200 K. (a) What is its efficiency? % (b) How much more work could be done if the engine were reversible? J

  • A Carnot engine is operated between two heat reservoirs at T1= 435 K and T2= 308...

    A Carnot engine is operated between two heat reservoirs at T1= 435 K and T2= 308 K. (a) If the engine receives 5113 J of heat from the reservoir at T1 in each cycle, how many joules per cycle does it deliver to the reservoir at T2? (b) How much mechanical work is performed by the engine during each cycle? (c) What is the thermal efficiency of the engine?

  • SP3. A Carnot engine operating in reverse as a heat pump moves heat from a cold...

    SP3. A Carnot engine operating in reverse as a heat pump moves heat from a cold reservoir at 7°C to a warmer one at 22°C. a) What is the efficiency of a Carnot engine operating between these two temperatures? b) If the Carnot heat pump releases 250 J of heat into the higher-temperature reservoir e co in each cycle, how much work must be provided in each cycle? c) How much heat is removed from the 7°C reservoir in each...

  • 1. A Carnot engine has a hot reservoir at 250 degrees C, and a a cold...

    1. A Carnot engine has a hot reservoir at 250 degrees C, and a a cold reservoir at 25.0 degrees C. What is the efficiency of this engine? A) 10% B) 43% C) 57% D) 90% 2. A heat engine does 50 J of work and dumps 30 J of heat into the cold reservoir. How much heat was absorbed from the hot reservoir? A) 20 J B) 30 J C) 50 J D) 80 J 3. A heat engine...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT