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Adsorption is accompanied with:
  • a)
    Decrease in entropy of system
  • b)
    Decrease in enthalpy
  • c)
    The value of ΔS. T is negative
  • d)
    All of the above
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Adsorption is accompanied with:a)Decrease in entropy of systemb)Decrea...
Adsorption is accompanied by decrease in enthalpy (ΔH=−ve) and decrease in entropy (ΔS=−ve).

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Adsorption is accompanied with:a)Decrease in entropy of systemb)Decrea...
Here during adsorption. Gas is absorbed on the surface of metal... So entropy is decrease here. And during adsorption the heat is liberated. Which is call heat of adsorption. So due to heat is liberated the process is exothermic and dH will be negative too. And dST will be also negative because dS is negative and T never be negative so dST will be negative too.
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Community Answer
Adsorption is accompanied with:a)Decrease in entropy of systemb)Decrea...
Entropy change depends on the specific adsorption process and cannot be generalized
d)Increase in enthalpy
e)Increase in entropy of system
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