Question

1.
2.
3.
4.
Answer (Detailed Solution Below)

Option 1 : $35.6$ J mol$^{-1}$ K$^{-1}$ / $35.6$ J mol$^{-1}$ K$^{-1}$

Advertisement

Detailed Solution

सही उत्तर $35.6$ J mol$^{-1}$ K$^{-1}$ / $35.6$ J mol$^{-1}$ K$^{-1}$ है।

Key Points
Helpful?
PrepSnapprepsnap.in • Part -A

Question:

The molar enthalpy of fusion of benzene is $9.92$ kJ mol$^{-1}$ and its melting point is $278.6$ K. The molar entropy of fusion is closest to / बेंज़ीन की मोलर गलन एन्थैल्पी $9.92$ kJ mol$^{-1}$ है और गलनांक $278.6$ K है। मोलर गलन एन्ट्रॉपी निकटतम है

1.
$35.6$ J mol$^{-1}$ K$^{-1}$ / $35.6$ J mol$^{-1}$ K$^{-1}$
2.
$2.76$ J mol$^{-1}$ K$^{-1}$ / $2.76$ J mol$^{-1}$ K$^{-1}$
3.
$2764$ J mol$^{-1}$ K$^{-1}$ / $2764$ J mol$^{-1}$ K$^{-1}$
4.
$9.92$ J mol$^{-1}$ K$^{-1}$ / $9.92$ J mol$^{-1}$ K$^{-1}$

Correct Answer: $35.6$ J mol$^{-1}$ K$^{-1}$ / $35.6$ J mol$^{-1}$ K$^{-1}$

$\Delta S_{fus} = \Delta H_{fus}/T = 9920/278.6 = 35.6$ J mol$^{-1}$ K$^{-1}$. / $\Delta S_{fus} = \Delta H_{fus}/T = 9920/278.6 = 35.6$ J mol$^{-1}$ K$^{-1}$।

Downloaded from PrepSnap (prepsnap.in)