Question: ples help 4. At 1084C solid copper melts to form a liquid. The phase change can be described as Cu(s)Cu(0). The density of solid and

ples help

4. At 1084C solid copper melts to form a liquid. The phase change can be described as Cu(s)Cu(0). The density of solid and liquid copper are 8.96g/cm3 and 7.75g/cm3 respectively. The enthalpies of combustion of the solid and liquid are 156.06kJ/mol and 167.92kJ/mol respectively. The product of combustion of both the solid and liquid is CuO(s). Calculate the standard enthalpy changes for the fusion process in kJ/mol. Calculate the change in intemal energy when the sample is under a pressure of 500kbar

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