Question

How much heat energy is required to convert 45.2 g of a solid iron at 28 C to liquid iron at 1538 C? The molar heat of fusion of iron is 13.8 kJ/mol. Iron has a normal melting point of 1538 C. The specific heat capacity of solid iron is 0.449 J/ (g • C).

Question 6 of 6 > How much heat energy is required to convert 45.2 g of solid iron at 28 °C to liquid iron at 1538 "C? The molar heat of fusion of iron is 13.8 kJ/mol. Iron has a normal melting point of 1538 °C. The specific heat capacity of solid iron is 0.449 J/g. 'C).

Answer 1

1 Heat required Heat required to Raise the temperature from 28°c to 15380 + out feat required for mett. Dette 1. Heat required = 45.2) (0.449) (1538-28)+(13.8x183)(45.2) 7 56 (۱) for kJ toT. T Molar Mass Note: No.of Moles - Mass in gm. Z Ioon. cooode sol podvedo Molar masso mass in gm. Heat required MSAT Specific heat in Ilgmc ) Heat required a 30645.15 + 106.94 1138.6 = 41783.72 Joule & Teo.