Chemical Thermodynamics Question 34

Question: Following data is known about melting of a compound AB. $ \Delta H=9.2,kJ,mo{{l}^{-1}} $ , $ \Delta S=0.008,kJ,{{K}^{-1}}mo{{l}^{-1}} $ . Its melting point is [Pb. PMT 2000; AIIMS 2000]

Options:

A) 736 K

B) 1050 K

C) $ 1150,K $

D) $ 1150^{o}C $

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Answer:

Correct Answer: C

Solution:

$ T_{m}=\frac{\Delta {H_{fusion}}}{\Delta {S_{fusion}}}=\frac{9.2}{0.008}=1150,K $ .



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