the mass of the water the pressure in the container the total energy of the water the position of the atoms in the container
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a laboratory, a sealed container with 100 g of steam is cooled until all the steam becomes a liquid. The container is then cooled further until all the water becomes a solid. Which of the following remains constant during both of these changes?
Possibilities:
- the mass of the water
- the pressure in the container
- the total energy of the water
- the position of the atoms in the container

the mass of the water