MEGR 3161 test 3 Question and answers verified to pass 2025

MEGR 3161 test 3 Question and
answers verified to pass 2025
Water must be treated as a two-component system since it is composed of
two elements, hydrogen and oxygen. - correct answer ✔False


A single phase system means that there is only one element in the system. -
correct answer ✔False


Graphite is thermodynamically the most stable form of carbon since


a) it has the lowest energy
b) it has the highest melting point
c) it is the softest compared to other forms of carbon such as diamond -
correct answer ✔a


Diamond is a meta-stable phase of carbon since its free energy is higher than
that of graphite, but transformation from diamond to graphite is kinetically
forbidden under ambient condition due to the energetic barrier for this
transformation. - correct answer ✔True


Water will always boil at 100C - correct answer ✔False


Adding a metal of a higher melting point into that of a lower melting point will
always increase the melting point of the latter. - correct answer ✔False


An isomorphous binary system means that adding any amount of one
component into the lattice of another will not change the lattice type. - correct
answer ✔True