Question

In a heating curve, when is the temperature constant?
during a phase change
during a pressure change
during a change in kinetic energy
during a change in molecular velocity

Answer 1

whenever we have a phase change the temperature remains constant

Answer 2

so a

Answer 3

i'm pretty sure that A would be the best answer based on my explanation

Answer 4

it was thanks

Answer 5

phase change could be understood also as an equilibrium process @ataraiders

Answer 6

because say you have something where the phase changes from a liquid to gas, boiling. you have molecules that escape to the gaseous phase and some that return to the liquid phase and so on.