The Gibbs free energy is defined as (a) G=H-T ·S (b) G=H+T ·S (c) G=E-T . S (d) G=E+TS

Name: Problem 34, Chapter 6: A Complete Resource Book in Chemistry for JEE Main
Uploaded: 2021-09-18T23:49:34-08:00
Duration: 1 min 5 s
Channel: Amita Prajapat
Description: The Gibbs free energy is defined as (a) G=H-T ·S (b) G=H+T ·S (c) G=E-T . S (d) G=E+TS

step 1 Gips free energy change is defined as delta G is equal to Delta H minus T Delta S where Delta G

The Gibbs free energy is defined as (a) G=H-T ·S (b) G=H+T...

The Gibbs free energy is defined as
(a) $\mathrm{G}=\mathrm{H}-\mathrm{T} \cdot \mathrm{S}$
(b) $\mathrm{G}=\mathrm{H}+\mathrm{T} \cdot \mathrm{S}$
(c) $\mathrm{G}=\mathrm{E}-\mathrm{T} . \mathrm{S}$
(d) $\mathrm{G}=\mathrm{E}+\mathrm{TS}$

Key Concepts

Gibbs Free Energy

Gibbs free energy is a thermodynamic potential that measures the maximum reversible work obtainable from a system at constant temperature and pressure. It is defined by the equation G = H - T·S, where G is the Gibbs free energy, H is the enthalpy, T is the absolute temperature, and S is the entropy. This concept is crucial in determining the spontaneity of a process; processes with a negative change in Gibbs free energy occur spontaneously.

Enthalpy

Enthalpy is a measure of the total energy of a thermodynamic system, including both internal energy and the energy required to displace its environment (work done due to pressure-volume changes). In many reactions and processes occurring at constant pressure, the change in enthalpy represents the heat absorbed or released.

Entropy

Entropy is a measure of the degree of disorder or randomness in a system. In thermodynamics, it quantifies the number of microscopic configurations that correspond to a thermodynamic system's macroscopic state. Its role in the Gibbs free energy equation (T·S) is critical, as it influences the spontaneity of a process when combined with temperature.

Temperature

Temperature is a thermodynamic parameter that quantifies the average kinetic energy of the particles in a system. In the context of Gibbs free energy, it acts as a scaling factor for entropy, meaning that the effect of entropy on the system's free energy is directly proportional to the absolute temperature.

Transcript

Please give Ace some feedback