Answer / sandip

Entropy is a measure of irreversibility or disorderness of a
system. All actual thermodynamic processes are irreversible
and their amount of irreversibility is measured by change in
entropy.

Answer / ak

Entropy is always associated with heat transfer between 2 bodies....it is ratio of heat transfer and temp....so if a body is rejecting heat its entropy is decreasing and if a body is gaining heat then its entropy is increasing...

Answer / archana

Entropy defines weather a cycle is reversible or irreversible

Answer / vny

actually entropy doesn't have any significance, we always defined change in entropy of a substance.. entropy generally defines the amount of internal energy gain or heated by the source on increasing temperature...
it is a state function i.e. its only depend on the intial and final postion of the body...

ex. heating or cooling of matter

Answer / samurai

refrigerators which are based on negative entropy
air conditioners(ac)etc

Answer / manoj kumar verma

sun rays are touch the particles & which value of heated
it's entropy.

Answer / anand

change of temperature

ET-2012 questions published

0 Answers   BARC,

How is natural gas better than lpg?

0 Answers  

Explain working of Kaplan turbine?

0 Answers   John Deere,

Which furnace burns low-ash fusion coal and retains most of the coal ash in the slag?

0 Answers  

What are the career paths in this position?

1 Answers   Petro Star Mount,

how airconditioner works

8 Answers   Bhel,

What is atmospheric pressure?

2 Answers  

I heard that the acetylene cylinder pressure can't be brought down below bar while using for welding activity. Is it true. . If so pl explain why

0 Answers  

I have applied the post Junior Engineer-iii(c&w)in R.R.B Guwahati recently . what type of question i have to practice and which book ?. can i get any model question paper?

6 Answers   RRB,

We have fifteen year old CNC turning lathe,placed in dust proof room,recently giving control problems frequently.We are considering to retrofit it.Pl.brief me about various point I should consider for accessing the mechanical health of machine.

0 Answers  

What is the reason behind having a vertical exhaust system in a tractor????

1 Answers   Hyundai, TATA,

Who are the leaders among expansion valve manifacturers? what are the recent developements in the expansion valve industry, used in refrigeration abd air-conditioning?

0 Answers