Question

1. Which curve or point of a phase diagram would indicate the melting point at various temperatures and pressures?

triple point
fusion curve
sublimation curve
critical point

Answer 1

Which curve or point of a phase diagram would indicate the melting point at various temperatures and pressures?

fusion curve

Answer 2

I think the correct answer from the choices listed above is the second option. It is the fusion curve that would indicate the melting point at various temperatures and pressures. It is the boundary in the phase diagram that separates the solid and the liquid phase.