Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
mikael mikael
wrote...
Go to Answer
Donated
Posts: 12017
Rep: 103 2
9 years ago

 
A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 550 K and 270 K, performs  2.1 kJ of net work, and rejects 9.4 kJ of heat, in a single cycle. The thermal efficiency of this heat engine is closest to: 
A)
 
0.18 
B)
 
0.16 
C)
 
0.15 
D)
 
0.20 
E)
 
0.22 
Read 563 times
2 Replies
Replies
Answer accepted by topic starter
padrepadre
wrote...
#1
Staff Member
Educator
Top Poster
Posts: 21608
Rep: 4541 17
9 years ago
Sign in or Sign up in seconds to unlock everything for free
1
Mastering in Nutritional Biology
Tralalalala Slight Smile

Related Topics

mikael Author
wrote...
#2
Donated
9 years ago
Great, thank you, physics couldn't be easier now Slight Smile
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1328 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 517
  
 133
  
 194
Your Opinion
What's your favorite coffee beverage?
Votes: 274
Previous poll results: Which industry do you think artificial intelligence (AI) will impact the most?