Respuesta :

Answer:

O begins to boil

Explanation:

When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid suddenly begins to boil.

  • At this point the boiling point of the liquid has been reached.
  • Further addition of heat energy will cause the liquid to boil vigorously
  • Subsequently evaporation will start from the surface of the boiling liquid.
  • The atmospheric pressure is the ambient pressure measured with the respect to the sea level pressure.

Answer:

has no observable changes

Explanation: