Nitrobenzene `(C_6 H_5 NO_2)` can be distilled with steam under one atmosphere pressure at a temperature of 372.2 K. Calculate the amount of steam necessary to distil 0.1 kg of nitrobenzene. The vapour pressure of water at 372.2 K is 739 mm.

Explanation

To solve the problem of calculating the amount of steam necessary to distill 0.1 kg of nitrobenzene, we will follow these steps:

### Step 1: Calculate the Molecular Weight of Nitrobenzene
The molecular formula of nitrobenzene is \( C_6H_5NO_2 \). We can calculate its molecular weight as follows:

\[ \text{Molecular Weight} = (12 \times 6) + (1 \times 5) + (14 \times 1) + (16 \times 2) \]
...