Question

prove that decrease in energy is measure of useful work done by the system???.​

Answer 1

Answer:

according to first law of thermodynamics.....

∆E = q +W.......

q = T∆S

W = work done by a system.

∆E = T∆S - ( Useful work + W°)

Where.....W° = P∆V

∆E = T∆S - P∆S - W (useful)

-W (useful) = (∆E + P∆V) - T∆S

= ∆H - T∆S

= ∆G...

-∆G = W (useful)...........

Answer 2

$\huge\underline \mathfrak \blue{Answer}$.

Thermodynamics is defined as the branch of science that deals with the relationship between heat and other forms of energy, such as work. It is frequently summarized as three laws that describe restrictions on how different forms of energy can be interconverted. Chemical thermodynamics is the portion of thermodynamics that pertains to chemical reactions.

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