Equation for Helmholtz free energy is :
Equation for Helmholtz free energy is :
The correct option is C F=U−TS
In thermodynamics, the Helmholtz free
energy is a thermodynamic potential that measures the “useful” work obtainable
from a closed thermodynamic system at a constant temperature and volume. The
negative of the difference in the Helmholtz energy is equal to the maximum
amount of work that the system can perform in a thermodynamic process in which
volume is held constant. If the volume is not held constant, part of this work
will be performed as boundary work. The Helmholtz energy is commonly used for
systems held at constant volume.
The
Helmholtz energy is defined as:
F=U−TS
Where,
F
is the Helmholtz free energy (joules)
U
is the internal energy of the system (SI: joules)
T
is the absolute temperature (kelvin) of the surroundings, modeled as a heat
bath,
S
is the entropy of the system (SI: joules per kelvin)
In thermodynamics, the Helmholtz free energy is a thermodynamic potential that measures the “useful” work obtainable from a closed thermodynamic system at a constant temperature and volume. The negative of the difference in the Helmholtz energy is equal to the maximum amount of work that the system can perform in a thermodynamic process in which volume is held constant. If the volume is not held constant, part of this work will be performed as boundary work. The Helmholtz energy is commonly used for systems held at constant volume.
The Helmholtz energy is defined as:
F=U−TS
Where,
F is the Helmholtz free energy (joules)
U is the internal energy of the system (SI: joules)
T is the absolute temperature (kelvin) of the surroundings, modeled as a heat bath,
S is the entropy of the system (SI: joules per kelvin)
