7

7

7

2

5

9

6

3

4

11

12

4

8

10

6

1

1. Gas cylinder 5. Gas-liquid solubility cell 9. Magnetic stirrer

2. Gas rotameter 6. Pt sensor 10. Thermostated water bath

3. S S coil 7. Temperature indicator 11. Temperature controller

4. Water vapour saturator 8. Eudiometer tube 12. Circulator temperature controller