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For exothermic reactions to be spontaneous
  • a)
    Temperature should be high
  • b)
    Temperature should be 0°C
  • c)
    Temperature should be low
  • d)
    Temperature should be above 373 K
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
For exothermic reactions to be spontaneousa)Temperature should be high...
I think the answer should be 'C'.
Since the reaction is exothermic, H is negative and S is also negative (randomness decreases with loss of heat), so -TS term is positive.
For G to be negative T should be low.
Correct me if wrong.
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Community Answer
For exothermic reactions to be spontaneousa)Temperature should be high...
Exothermic reaction when a reaction has a net released of heat , system losses heat (∆H is negative) spontaneous means that the reaction happen without any added help ( i.e any extra energy ) . spontaneous reaction have a negative ∆G.so exothermic and endothermic reaction can he spontaneous depending on the value of T∆S( remember ∆G=∆H-T∆S)
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For exothermic reactions to be spontaneousa)Temperature should be highb)Temperature should be 0°Cc)Temperature should be lowd)Temperature should be above 373 KCorrect answer is option 'D'. Can you explain this answer?
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