Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 18)
18.
The entropy __________ in an irreversible cyclic process.
Discussion:
36 comments Page 3 of 4.
Bipin said:
1 decade ago
The meaning of decreasing entropy is not means that it becomes less than zero. It may be remains greater than zero and also greater than 0.
ANUPAM ADARSH MISHRA said:
1 decade ago
Entropy is a property and for any cyclic process change in property becomes Zero doesn't matter if it's being carried reversibly or irreversibly.
Venkat said:
1 decade ago
Irreversible means factors are not restored like heat. Hence for irreversible processes entropy increases.
BKrish said:
1 decade ago
Entropy will increases addition of heat and decreases with removal of heat?
Is this statement is right? if yes, why?
Is this statement is right? if yes, why?
Najin K said:
1 decade ago
In an irreversible process the entropy of the "system" may increase, decrease or remain constant but it always increases for the "universe" (increase in entropy principle).
Haridas Bhuse said:
1 decade ago
Entropy is nothing but disorder in process e.g. Suppose we suppy 1j energy to system then it gives less work i.e. less then 1j.
MD MOBIN ALAM said:
1 decade ago
Low grade energy divided into two part available energy and unavailable energy. The unavailable energy is not use in the system. This UAE is called entropy and entropy is always increases.
Satz said:
1 decade ago
What's meant by entropy?
Anil said:
1 decade ago
Entropy of system depend on two factor 1st one is heat interaction. 2one is molecular disorder like friction due to intermolecular reaction.
In reversible system may increase or decrease.
In reversible system may increase or decrease.
Deep patel said:
1 decade ago
As per the clausius statement dQ/T <= 0 for irreversible cyclic process. i.e., entropy is always less than zero.
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