Answer: To find the partial pressure of the dry gas, we need to subtract the vapor pressure of water from the total pressure. The vapor pressure of water at 300K is 3.6 kPa, so the partial pressure of the dry gas is:
50 kPa - 3.6 kPa = 46.4 kPa
Therefore, the partial pressure of the dry gas is 46.4 kPa.
Step-by-step explanation: