If the δg° of the reaction a → b is –40 kj/mol, under standard conditions the reaction:

The value of Gibbs free energy of the reaction is negative which means that  reaction is spontaneous.

Explanation:

ΔG° = ΔH° - TΔG°

Where:

ΔG° = Change in Gibbs free energy at T temperature

ΔH° = Enthalpy of reaction at T temperature

ΔS° = Entropy change of reaction at T temperature

A → B ,ΔG° = -40

The value of Gibbs free energy of the reaction is negative which means that  reaction is spontaneous.

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conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.