Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 5)
5.
There is a loss of heat in an irreversible process.
Discussion:
40 comments Page 2 of 4.
.AJAY AND RAKESH said:
1 decade ago
C = dQ/dT.
The amount of heat required to raise the temperature of substance through one degree celsius is called specific heat. If the process occurs at constant volume is called specific heat at constant volume.
The amount of heat required to raise the temperature of substance through one degree celsius is called specific heat. If the process occurs at constant volume is called specific heat at constant volume.
Adarsh Mishra said:
8 years ago
Every spontaneous process is irreversible (flowing water stream across finite potential difference) but there is no loss of HEAT.
All irreversible process are accompanied by loss of EXERGY (availability) instead.
All irreversible process are accompanied by loss of EXERGY (availability) instead.
Mohit said:
6 years ago
Heat transfer through a finite temperature gradient leads to irreversibility. But there is no heat loss.
Another example is irreverible adiabatic process. NO heat loss is there. I think the Answer should be B.
Another example is irreverible adiabatic process. NO heat loss is there. I think the Answer should be B.
(2)
J bhargavi baaji said:
1 decade ago
Reversible is a closed process there will be no heat loss and can reach to the final position where as in irreversible process it cannot reach to its final position as it is open process and heat loss occurs.
Praveen S said:
9 years ago
The isentropic process is a reversible adiabatic process.
In an reversible process pressure remains unchanged.
In adiabatic process there is no heat transfer between the system and the surroundings.
In an reversible process pressure remains unchanged.
In adiabatic process there is no heat transfer between the system and the surroundings.
Jithindas said:
5 years ago
During this transformation, there will be some heat energy loss or dissipation due to intermolecular friction and collisions. This energy will not be recoverable if the process is reversed.
(4)
Vishnu said:
1 decade ago
If any process is done there may be loss of energy (heat). Such that in irreversible process heat is released & we cannot collect it. Hence in irreversible process heat is loss.
Thirupathi Malavath said:
1 decade ago
Irreversibility can be defined mathematically as a product of Surrounding Temperature(T) and change in entropy of the universe(ds) , which means loss of energy in the form of heat.
Pritam said:
9 years ago
According to inequality of Clausius.
dq/dt < 0 for irreversible process.
This shows that change in heat is always negative i.e. heat loss in the irreversible process.
dq/dt < 0 for irreversible process.
This shows that change in heat is always negative i.e. heat loss in the irreversible process.
Chandrasekhar said:
8 years ago
In thermodynamics, reversible process is know as quize static process. Irreversible process means we can't get the same amount of energy when we reverse the process.
(1)
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