Relative humidity of air is `60^(@)C` and the saturation vapour pressure of water vapour in air is `3.6kPa`. The amount of water vapours present in `2 L` air at `300 K` is

Options

A. `52 g`
B. `31.2 g`
C. `26 g`
D. `5.2 g`

Explanation

To find the amount of water vapour present in 2 L of air at 300 K with a relative humidity of 60% and a saturation vapour pressure of 3.6 kPa, we can follow these steps:

### Step 1: Convert given values
- **Saturation vapour pressure (P₀)** = 3.6 kPa = 3.6 × 10³ Pa
- **Volume (V)** = 2 L = 2 × 10⁻³ m³
- **Temperature (T)** = 300 K
- **Relative Humidity (RH)** = 60% = 0.60

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