In which among the following system does the equilibrium phase nuclea – McqOptions

MCQOPTIONS

1.	In which among the following system does the equilibrium phase nucleate homogeneously?
A.	Cu-Co
B.	S-P
C.	Cu-Ag
D.	Au-Cu
Answer» B. S-P

Discussion

No Comment Found

Related MCQs

In most systems the α and β phases have such different crystal structures that it is impossible to form coherent low-energy interfaces and homogeneous nucleation of the equilibrium β phase is then impossible.
Driving force for precipitation (ΔGv) is the main factor in controlling_________
Which among the following curve represents the surface energy term?
Equilibrium phase is probably formed homogeneously at a few tens of degrees undercooling is at the precipitation of Ni3Al in many Ni-rich alloys.
Which among the following can make the homogeneous reaction feasible?
If each nucleus can be made supercritical at a rate of f per second the homogeneous nucleation rate is given as f*C (Assume C to be the concentration of critical-sized nuclei). The value of f depends on ______
If each nucleus can be made supercritical at a rate of f per second the homogeneous nucleation rate will be given by________ (Assume C to be the concentration of critical-sized nuclei)
In which among the following system does the equilibrium phase nucleate homogeneously?
If we ignore the variation of γ with interface orientation and assume the nucleus is spherical with a radius of curvature r, determine the value of γ if the value of (ΔGs-ΔGv) tends to zero? (ΔG represents the total energy)
Calculate the concentration of critical sized nuclei if the critical free energy tends to 0? (Assume the number of atoms per unit volume in the phase is given as Cx)