Guys, I have a question, what is mean by does the estimate explain the value for moulding energy? Can you explain this question and answer it?Thanks

Q6. Estimate the energy to mould PET by assuming it to be equal to the energy required to heat PET from room temperature to its melting temperature, Tm. Compare this with the actual moulding energy. You will find the moulding energy, the specific heat and the melting temperature in the databased for PET. Does the estimate explain the value for moulding energy? (10 marks) Table 3 : Embodied energy of Cast Iron Oxide and Aluminium Oxide Material Specific Heat, Cp (J/kg*K) Melting Temperature, Tm, (C) 238.5 Energy to heat to melting point, Cp.Tm (MJ/kg) Molding Energy (MJ/kg) PET 1445 0.35 19.15