The melting points and heats of fusion of o-, p-dinitrobenzene are 390.1 and 446

Question

The melting points and heats of fusion of o-, p-dinitrobenzene are 390.1 and 446.7K, and 16.33 and 14.00 kJ/mol, respectively. Assuming ideal solubility behavior, calculate the melting point for a solution of 10 mol% o-dinitrobenzene in 90 mol% p-dinitrobenzene.

Please use the heats of fusion and the melting points to find the melting point of the solution

6. The melting points and heats of fusion of o-, p-dinitrobenzene are 390.1 and 446.7 K, and 16.33 and 14.00 kJ/mol, respectively. Assuming ideal solubility behavior, calculate the melting point for a solution of 10 mol% o-dinitrobenzene in 90 mol% p- dinitrobenzene.

Explanation / Answer

if ideal

Tmix = x1*T1 + x2*T2

Tmix = 390.1*0.1 + 0.9*446.7 = 441.04 K

this assume ideal solution and ideal gas

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