Physics
The density of solid iron at 20°C is
? = 7.88 g/cm3.When it is liquid at 1538°C the density of the liquid state is decreased:6.98 g/cm3. How much work does a block of iron of mass 147 kg do if it is heated at
p = 1.0 atmfrom 20°C to 1538°C?
J

