Related questions
Question
![While shadowing a dentist Evelyn learns that lasers are
the next big thing in "holistic" dentistry, so she
volunteers in a Physics Lab at UCI that. But before they
trust her with lasers, however, they have Evelyn design
the gas power cycle that will power the laser. In Evelyn's
power cycle, air is initially at a pressure of 420 kPa and a
volume of 3 m³. In the first step, the air undergoes
isochoric compression to a pressure of 750 kPa. In the
second step, it undergoes isobaric expansion to a
volume of 7 m³. In the third step, the air undergoes
isothermal expansion until its pressure drops to 420
kPa. In the fourth and final step, the air undergoes
isobaric contraction to a volume of 3 m³. What is the
net heat flow, per cycle, for Evelyn's cycle? [Hint: Draw
a PV diagram of the process. It will help.]
860 kJ
1,738 kJ
2,054 kJ
3,173 kJ](https://content.bartleby.com/qna-images/question/b3e60d54-32d3-4a03-81bc-d66f3f7b20bb/d4d0632a-3a5a-4668-9337-36a5e21dbc96/ynlnjl_processed.png)
Transcribed Image Text:While shadowing a dentist Evelyn learns that lasers are
the next big thing in "holistic" dentistry, so she
volunteers in a Physics Lab at UCI that. But before they
trust her with lasers, however, they have Evelyn design
the gas power cycle that will power the laser. In Evelyn's
power cycle, air is initially at a pressure of 420 kPa and a
volume of 3 m³. In the first step, the air undergoes
isochoric compression to a pressure of 750 kPa. In the
second step, it undergoes isobaric expansion to a
volume of 7 m³. In the third step, the air undergoes
isothermal expansion until its pressure drops to 420
kPa. In the fourth and final step, the air undergoes
isobaric contraction to a volume of 3 m³. What is the
net heat flow, per cycle, for Evelyn's cycle? [Hint: Draw
a PV diagram of the process. It will help.]
860 kJ
1,738 kJ
2,054 kJ
3,173 kJ
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 5 steps with 4 images
Knowledge Booster
Similar questions
- 1) The nickel alloy materials using on the hot section of a jet engine can withstand temperatures of up to 1100 °C (2012 °F or 1373 K) if you add a ceramic coating that number goes up to 1300 °C (2372 °F or 1573 K). Assuming an ideal carnot efficiency in both cases, what is the increase of efficiency from no coating to coating. (Assume Ambient Temperature Exhaust gases to be 25 °C or 298 K)arrow_forwardNeeds Complete typed solution with 100 % accuracy.arrow_forwardWhat is carnot efficiency of a heat engine operating between the temperatures of 381 degrees celsius and -11 degrees celsius. Give the result as a decimal - not percent! calculate in two decimals.arrow_forward
- What is Carnot efficiency of a heat engine operating between the temperatures of381 and -11 Give the result as a decimal - not percent! Calculate answer to two decimals.arrow_forwardShown below is the PV-diagram for a clockwise cycle. Determine the work done during the cycle, the heat flow during the cycle, & the change in internal energy during the cycle. P (N/m²) 10- 8 W = Q = AU = 4 2 V (m³) 2 4 6 8 10arrow_forwardAt what temperature does a process with [delta]H = +20. KJ and [delta]S = +300. J become spontaneous? (Give the answer in 3 sig figs) please explain with stepsarrow_forward
- What is Carnot efficiency of a heat engine operating between the temperatures of476 and -8 Give the result as a decimal - not percent! Calculate answer to two decimals.arrow_forwardA total of a 185 J of work is done on a gaseous refrigerant as it under goes compression, If the internal energy of the gas increases by 160 J during the process. What is the total amount of energy transferred as heat? Has energy been added to or removed from the refrigerant as heat? Show the procedure, result with units and directionarrow_forward
arrow_back_ios
arrow_forward_ios