A gas is collected over water at a certain temperature. The total pressure is 762. mmHg. The vapor pressure of water at this temperature is 17 mmHg.The partial pressure of the collected gas is 745mmHg.
What is pressure?
- The total pressure applied by a wet gas is equal to the sum of the partial pressure of the gas itself + the vapor pressure of water at that temperature.
- The major difference between the vapor pressure and partial pressure of a gas is that vapor pressure is the pressure exerted by the gas over its condensed phase.
- Pressure is the pressure applied by the gas in volume, which is occupied by the mixture of gases.
- Total pressure formula, P (total) = P (oxygen) + P (water).
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