What is the heat capacity of water in meta-stable equilibrium?

In summary, the heat capacity of water in meta-stable equilibrium refers to the ability of water to absorb heat under conditions where it is not in its most stable state. This can occur in situations where water exists in a supercooled or superheated state, impacting its thermal properties and behavior. The meta-stable state can influence various physical and chemical processes, making the study of heat capacity in such conditions important for understanding water's role in natural and engineered systems.
  • #1
ORF
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TL;DR Summary
What is the heat capacity of water in meta-stable equilibrium?
Dear experts,

I noticed that super-heated water (liquid water with temperature above 100*C) undergoes boiling when pushed outside the meta-stable equilibrium.

I was wondering, is the heat capacity of liquid water above 100*C the same as liquid water with temperature between 0*C and 100*C?

Similarly, for super-cooled liquid water (liquid water with temperature below 0*C), is its heat capacity the same as liquid water with temperature between 0*C and 100*C?

Thank you for your time.ORF
 
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  • #2
Google gave me literally hundreds of tables and charts. Your answer must vary with temperature, but does not greatly diverge from one.

If these are not what you want, you need to be more specific. Note that if water is superheated or supercooled, it has not undergone a phase transition. By definition.
 
  • #3

FAQ: What is the heat capacity of water in meta-stable equilibrium?

What is the heat capacity of water in meta-stable equilibrium?

The heat capacity of water in meta-stable equilibrium is approximately the same as that of water in stable equilibrium. For liquid water, this is about 4.18 Joules per gram per degree Celsius (J/g°C).

Does the heat capacity of water change in a meta-stable state?

In a meta-stable state, the heat capacity of water is generally considered to be very close to that in a stable state. However, slight variations can occur due to differences in molecular arrangements or impurities.

How is meta-stable equilibrium different from stable equilibrium in terms of heat capacity?

Meta-stable equilibrium refers to a state where water remains in a phase that is not the most stable under given conditions but does not change phase immediately. The heat capacity in this state is typically very similar to that in stable equilibrium, with only minor potential deviations.

Can meta-stable equilibrium affect the measurement of water's heat capacity?

Yes, meta-stable equilibrium can affect the measurement of water's heat capacity if the state is not properly maintained or if phase transitions occur during the measurement. Careful control of experimental conditions is necessary to obtain accurate results.

What experimental conditions are required to measure the heat capacity of water in meta-stable equilibrium?

To measure the heat capacity of water in meta-stable equilibrium, it is important to maintain a constant temperature and pressure that keep water in the desired meta-stable phase. Additionally, avoiding impurities and ensuring uniform temperature distribution can help achieve accurate measurements.

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