The vapour pressure of water at `100^(@)C` is ……………..bar .

Explanation

To find the vapor pressure of water at 100°C, we can follow these steps:

### Step 1: Understand the boiling point of water
At 100°C, water reaches its boiling point. This means that the vapor pressure of water at this temperature is equal to the atmospheric pressure.

### Step 2: Know the relationship between atmospheric pressure and bar
Standard atmospheric pressure is defined as 1 atmosphere (atm). We need to convert this value into bars. The conversion is as follows:
1 atm = 1.013 bar
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