Question

4. Calculate the melting temperature of NaCl. Its AH fuston = 28.16 kJ/mol and AS fusion = 26.22 J/mol.K. You can assume AH a
0 0
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Answer #1

It has the expression of free energy:

ΔG = ΔH - T * ΔS

The substance has to melt when ΔG = 0, then the temperature is calculated:

0 = 28.16 - T * 0.02622

T = 1074 K clears

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