A gas occupies 0.15dm3 when collected over water at 15°C and 75cm of Hg. In the dry condition the same gas occupies 0.138dm3 at NTP. Calculate aqueous tension. Share with your friends Share 3 Tejas Malik answered this A gas occupies 0.15dm ^3 when collected over water at 15°C and 75cm of Hg -1 View Full Answer