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Entropy

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what is the meaning of "overall entropy change of universe associated with spontaneous process is positive"?

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Q. Assertion :If both

Δ H^{0}

Δ S^{0}

are positive then reaction will be spontaneous at high temperature. Reason: All processes with positive entropy change are spontaneous.

Q. Assertion :The thermodynamic factor which determines the spontaneity of a process is the free energy. For a process to be spontaneous the free energy must be -ve Reason: The change in free energy is related to the change in enthalpy and change in entropy. The change in entropy for a process must always be positive if it is spontaneous.

Q. For a reaction both enthalpy change and entropy change are positive. Under what conditions the reaction will be spontaneous?

Q. The total entropy change (

Δ S_{t o t a l}

) for the system and surroundings of a spontaneous process is given by :

Q. The total entropy change

(△ S_{t o t a l})

for the system and the surrounding of a spontaneous process is given by:

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