Write the mathematical statement of first law of thermodynamics.
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The first law of thermodynamics is simply a statement of the principle of conservation of energy.
This law states that:
‘The energy of an isolated system remains constant, although it may be changed from one form to the other’. Or Energy can neither be created nor destroyed but can be converted from one form to another form.
Heat supplied = Work done by the system + Increase in internal energy
Increase in internal energy = Heat supplied – Work done by the system
This statement can be mathematically represented as:
dE = q – w
Where dE is the increase in internal energy in the system, q is the heat supplied and w is the work done by system.
This law states that:
‘The energy of an isolated system remains constant, although it may be changed from one form to the other’. Or Energy can neither be created nor destroyed but can be converted from one form to another form.
Heat supplied = Work done by the system + Increase in internal energy
Increase in internal energy = Heat supplied – Work done by the system
This statement can be mathematically represented as:
dE = q – w
Where dE is the increase in internal energy in the system, q is the heat supplied and w is the work done by system.
Answered by
5
the answer is ∆U=Q+W
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