Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 33)
33.
In the first law of thermodynamics, the total energy of the system remains constant.
Discussion:
11 comments Page 1 of 2.
Debajyoti Halder said:
8 years ago
It's for an isolated system. The total energy of the universe remains constant. Universe = system + surrounding. It's not necessary that energy of the system has to be constant. Because heat and work are boundary phenomenon.
(1)
Dawangave mangesh said:
10 years ago
Answer is true because such as law not write in any books. We are depends on book. But it may be possible books is wrong?
Vicky said:
10 years ago
The energy of the universe is constant not the system if not be specified that the system is what?
SRK said:
10 years ago
First law is state that the law of conservation of energy. Energy can neither be created nor be destroyed but only converted one for to another form.
Kunwar singh said:
1 decade ago
According to first law energy can neither be created nor be destroyed it can be change from one form to another form.
Uttam talaviya said:
1 decade ago
The first law of thermodynamics states that total energy of universe remain constant. If we take any particular system than there may be change in total energy of system in case of irreversible process.
UTTAM KUMar said:
1 decade ago
Sigma Q= SIGMA W.
Jibi said:
1 decade ago
These questions have not been written out properly. I was so confused that I got the answer wrong. This answer is only true for an isolated system like the universe.
Carlos Pereira said:
1 decade ago
What?
Probably you are talking of thermodynamics in another universe.
So how can you explain the increase of temperature in a system composed by a certain mass of substance when heat is supplied.
The total energy of the substance remains constant?
Probably you are talking of thermodynamics in another universe.
So how can you explain the increase of temperature in a system composed by a certain mass of substance when heat is supplied.
The total energy of the substance remains constant?
Sandip said:
1 decade ago
Thermodynamics first low state that Energy can be neither created nor destroyed, if can only changes forms any process in an isolated system, the total energy remains the same.
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