Question

I have this problem, please explain the solution to me!

A sealed vessel contains dry air with the pressure 101 kPa. The air's volume is 110 ml and the temperature in the vessel is 60 °C during the whole experiment.

a) What is the new pressure in the vessel if you pour some water into it and immediately seal it again?

b) How much does the water vapor in the vessel weigh? The ratio between water vapor and the air's density is 0,62 at 0°C and 101,3 kPa (NTP). I have this problem, please explain the solution to me!

A sealed vessel contains dry air with the pressure 101 kPa. The air's volume is 110 ml and the temperature in the vessel is 60 °C during the whole experiment.

a) What is the new pressure in the vessel if you pour some water into it and immediately seal it again?

b) How much does the water vapor in the vessel weigh? The ratio between water vapor and the air's density is 0,62 at 0°C and 101,3 kPa (NTP). @Physics

Answer 1

Does the temperature remain constant after adding the water? What is the vapor pressure of water at that temperature then? Does Dalton's Law of Partial pressure apply? Can you determine the number of moles of water vapor using the partial pressure?