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- IIT JAM
- Chemistry (CY)
() 70% (b) 90% (c) s0% 7. he general reason for the elevation of the boiling point of a solvent when a nonvolatile solute is dissolved in it, is the: [hcu 2014]
() 70% (b) 90% (C) S0% 7. he general reason for the elevation of the boiling point of a solvent when a nonvolatile solute is dissolved in it, is the: [HCU 2014] (a) Attractive interaction between the solvent and solute molecules 6) Repulsive interaction between the solvent and solvent molecules (C) Increase in entropy (d) Enthalpy change associated with the dissoCation 2 25e of an aaueous solution of sucrose with a mo lar concentration of 0.2
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Priyanshu kumar Best Answer
Option C increase in entropy
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As non volatile solute is there so no attractive and repulsive interaction...as the molecules gets increases so increase in entropy is general reason
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but sir if non volatile solute is added then vapoure pressure decreases due to attractive nature of solute and solvent
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more general reason is asking and as non volatile solute is present so genrally we consider no interactions
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what is given in answer?
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ans is c
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yes more general reason is increase in entropy
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is this reason is also write as if we increase the temp. then entropy increases
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entropy increases with increase in temp
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Dinesh khalmaniya 1![best-answer]()
Explanation: The dissolution of a solute in a solvent relies on the interaction between solute particles, and solvent molecules....and usually this is an attractive force. It is reasonable that such interactions should ELEVATE the boiling point of a solution by an amount proportional to the concentration of the dissolved solute... And so too for melting point... the solvent-solvent forces of interaction are SOMEWHAT diminished.
thn what is the option sir
option Should be A
c is given sir
wait.. I'll check it again