3 years ago

The change in __________ is the amount of energy in a system that is available to do work.

1 answer:

6 0

The answer is free energy.
In fact, in thermodynamics, the free energy of a system is defined as the energy that can be converted to do work. Helmholtz definition of free energy, for instance, is:
$A=U-TS$
where U is the internal energy, T the temperature and S is the entropy

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