Question

A student mixed 5.00 g (0.0.594 mol) of solid cyclohexane, C6H12, (84.18 g/mol) at its melting temperature of 6.6ºC with 50.0 g (0.594 mol) of liquid cyclohexane at 50.0ºC in an open yet insulated container. After thermal equilibrium was established, the temperature of the mixture was 44.5ºC. The specific heat capacity of liquid cyclohexane is 1.809 J/g/K, and is assumed to be constant over the temperature interval. From this information, what is the molar enthalpy of fusion, ?H fusion, of cyclohexane?

          A student mixed 5.00 g (0.0.594 mol) of solid cyclohexane, C6H12, (84.18 g/mol) at its melting temperature of 6.6ºC with 50.0 g (0.594 mol) of liquid cyclohexane at 50.0ºC  in an open yet insulated container. After thermal equilibrium was established, the temperature of the mixture was 44.5ºC. The specific heat capacity of liquid cyclohexane is 1.809 J/g/K, and is assumed to be constant over the temperature interval. From this information, what is the molar enthalpy of fusion, ?H fusion, of cyclohexane?

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