I What will be the boiling point of fully-filled water in a vacuum container?

[chandlerchoi]

What will be the boiling point of the fully filled water in a vacuum container? Let's say I vacuum the container first, then fill it the water in it from water reservoir of same vacuum level

 

[Baluncore]

Welcome to PF.

You ask an impossible question.
There can be no total vacuum in the presence of water.

If there is any space available in the container above the water, the vacuum of that space will be filled immediately by water vapour, at the partial pressure of water for that temperature water and container.
https://en.wikipedia.org/wiki/Vapour_pressure_of_water

 

[chandlerchoi]

Thank you for the reply.
Let me elaborate more.
what I am thinking is... in the computer cooling system, if we vacuum the water reservoir of coolant (water), what will be the boiling point of the water in the cooling chamber above the CPU.
Since water coolant flows, the cooling chamber will be filled up with water all the time. so I wrote "vacuum container" to describe "cooling chamber environment"
in this configuration, does the water in the chamber with no gas/air follows the pressure-temperature graph?

 

[Baluncore]

If you apply a vacuum to the closed water reservoir, at any temperature, the water will boil until there is only water vapour remaining. Then the pressure will fall until the chamber is dry, and is a total vacuum.

If you seal a chamber, that is completely filled with liquid water, without a safety valve or sufficient airspace, then as the water is warmed, the water will expand, the pressure will rapidly rise, until the chamber bursts.

 

[russ_watters]

I agree these scenarios are badly constrained, but here's a saturated steam table app you can use to find the properties(temperature) of water/steam at whatever pressure you might have in mind:

https://www.efunda.com/materials/water/steamtable_sat.cfm

 

[Chestermiller]

Thank you for the reply.
Let me elaborate more.
what I am thinking is... in the computer cooling system, if we vacuum the water reservoir of coolant (water), what will be the boiling point of the water in the cooling chamber above the CPU.
Since water coolant flows, the cooling chamber will be filled up with water all the time. so I wrote "vacuum container" to describe "cooling chamber environment"
in this configuration, does the water in the chamber with no gas/air follows the pressure-temperature graph?

Can you please provide a sketch?

 

[russ_watters]

By the way, there is a technology that uses low pressure steam/water in a steam-refrigeration cycle:

https://en.m.wikipedia.org/wiki/Heat_pipe