Question
Chemistry Question on Solutions
What is the unit of Henry's law constant?
Answer
The unit of Henry's law constant (kH) depends on the units of the partial pressure of the gas and the concentration of the gas in the liquid phase. If the partial pressure of the gas is in atmospheres (atm) and the concentration of the gas in the liquid phase is in moles per liter (M), then the units of kH are: L·atm/mol If the partial pressure of the gas is in pascals (Pa) and the concentration of the gas in the liquid phase is in moles per cubic meter (mol/m³), then the units of kH are: m³·Pa/mol