[Saionji]

The steel (solid binary mixture) containing 4.3 % of carbon, in elevation in temperature, undergoes a state change to 1147 º C, which passes into liquid state. In this transformation the temperature remains constant. Based on text and in their knowledge, judge:
a) This type of steel is a heterogeneous azeotropic mixture.
b) This type of steel is a heterogeneous eutectic mixture .
c) This type of steel is a homogeneous eutectic mixture.
d) The other component of the mixture is iron with a content of about 82.7% mol.
I believe that A and C is true and B false. D I do not know... am i right?

[Jorriss]

I don't know anything about these but I'm curious how A and C could be true simultaneously?

[Saionji]

Ah, no, I do not know why i wrote that. I wanted to say C is false, but it is my opinion, not the answer..