Limitations of the first law
Limitations of the first law
The 1st law of thermodynamics is the law of conservation of energy. It doesn't specify the direction of the method(process). All spontaneous processes are processed only in one direction. The first law of thermodynamics doesn't deny the feasibility(workability) of a process reversing itself.
Limitations of the primary law:
1st limitation- 1st law doesn't facilitate(help) to predict whether a certain process is possible or not.
Reasons- It doesn't specify that heat can't flow from a low-temperature body to a high-temperature body.
2nd limitation- The 1st law doesn't provide info concerning(about) the direction.
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Reasons- as an example, it puts no restriction on the direction of the flow of warmth(heat), whether warmth(heat) can flow from a cold body to a hot body or vice versa.
3rd limitation- This law is silent concerning its percentage(%) of conversion of energy from one form to another form. Work can be converted into the equivalent amount of heat but heat can't be converted into the equivalent amount of work.
In other words:-
The limitations of the first law -
- It doesn't tell us the direction in which heat flows when they are in contact.
- It doesn't tell about the final temperature of two bodies when they are in direct contact.
- It doesn't tell about the entropy of the system.
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