Which of the following statements regarding spontaneous changes is false? Sponta

Question

Which of the following statements regarding spontaneous changes is false? Spontaneity is favored when heat is released. Spontaneity is favored when the dispersal of matter is increased. Spontaneous changes occur at a given state without any outside influence. lice melting at 25 degree C is spontaneous primarily due to the increase in molecular disorder (dispersal of matter. All exothermic reactions are spontaneous. Which statement below is false? For reactions that release heat to the surroundings, DH is negative. For reactions in which the reacting system becomes more disordered, DS is positive. If the free energy change of reaction is positive, the reaction cannot occur to give predominantly products under the given conditions. The entropy of a system increases when order increases. Endothermic reactions may be spontaneous.

Explanation / Answer

Question 13:

A:- All exothermic reactions are spontaneous => Generally all exothermic reactions are not spontaneous, some exothermic reactions are not spontaneously takes place.

Question 14:

A:- For reaction in which the the reacting system becomes more disordered, DS is positive

=> For reaction in which the the reacting system becomes more disordered, delta S is negative,

delta S = S products - S reactants

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