Does the following process absorb heat or release heat ?
Vaporisation of water

Answer

To determine whether the process of vaporization of water absorbs or releases heat, we can follow these steps:

### Step 1: Understand the Process of Vaporization
Vaporization is the process where water changes from a liquid state to a vapor state. This occurs when water molecules gain enough energy to overcome the forces holding them together in the liquid phase.

**Hint:** Think about what happens to water when it is heated.

### Step 2: Identify Heat Absorption
During vaporization, water must absorb energy in the form of heat to change its state from liquid to vapor. This energy is necessary for the water molecules to break free from the liquid state.

**Hint:** Consider what happens when you boil water on a stove.

### Step 3: Recognize the Concept of Latent Heat
The heat absorbed during the vaporization process does not increase the temperature of the water; instead, it is used for the phase change. This heat is referred to as "latent heat."

**Hint:** Remember that latent heat is the energy required for a phase change without a temperature change.

### Step 4: Conclusion
Since vaporization involves the absorption of heat to facilitate the change from liquid to vapor, we conclude that the process of vaporization of water absorbs heat.

**Final Answer:** The vaporization of water absorbs heat.

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