Respuesta :

a reaction that requires FREE energy it must be non spontaneous so option b is correct.

Answer: The correct answer is Option B.

Explanation:

Gibbs' free energy is defined as the thermodynamic quantity which is equal to the enthalpy of a system minus the product of entropy and the absolute temperature. It is represented by the symbol 'G'

Mathematically,

G = H - TS

where,

G = Gibbs' free energy of the system

H = enthalpy of the system

T = absolute temperature

S = entropy of the system

Sign convention for Gibbs' free energy:

If the value of G is '+ve', it means that energy is required by the system and reaction is considered as non-spontaneous reaction. If the value of G is '-ve', it means that energy is released from the system and the reaction is considered as a spontaneous reaction.

Hence, the correct answer is Option B.

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