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Shweta Thakur posted an Question

June 11, 2020 • 02:55 am

30 points

IIT JAM
Chemistry (CY)

Plz explain this... p aluoou goihu (0sen al

P aluoou goihu (0sen AL plz expalin thisbqueation sir

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Dinesh khalmaniya 1

hope this will help you 🙏
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Dinesh khalmaniya 1 Best Answer

suppose if Ea= 0 according to your question then collision between the molecule will be effective that means all the reactant will convert to product. it means there is no needed any amount of energy so reaction will be always exothermic in this case
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option C is correct according to your question.
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Dinesh khalmaniya 1

Activation energy is the minimum amount of energy required to activate the atoms or molecules or it is the difference between threshold energy from the potential energy of a reactant The activation energy can never be zero fora reaction why because according to arrhenius equation K = Ae^-Ea/RT Ea is the activation energy if it is O THEN, K = A, which would occur effective collisions between the molecule which is not ever possible.
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Dinesh khalmaniya 1

Option A is correct because activation energy is positive in all the case whether it is exothermic or endothermic except some exceptions.
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Suman Kumar

See this
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Suman Kumar

So option will be none
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Suman Kumar

So option will be none
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but answer is c
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Suman Kumar

Reaction will be exothermic only Ea of product is greater than Ea of reactant
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