Question

Which of the following metal has a melting point of about 1537^oC and latent heat of fusion 65.0 cal/g?

(a) Nickel

(b) Copper

(c) Zinc

(d) Iron

This question was posed to me during an interview.

Origin of the question is Furnaces for Melting topic in portion Pouring – Gating Design, Melting Furnaces, Melting and Casting Quality of Casting-Forming-Welding I

Answer 1

Correct choice is (d) Iron

To elaborate: Iron is the metal having a melting point of about 1537^oC and latent heat of fusion of 65.0 cal/g. It has a mean specific heat of 0.141 cal/g-^oC and heat required for melting 1 Kg of iron is 1168 kJ.