If the constant of proportionality is positive, ... If the constant is negative, the graph will have a negative gradient. ... Draw a graph by completing the table of values: 1.

Substitution of Henry’s law constant from the table, total pressure (P t = 1 atm), and liquid concentration into the above equation provides y i =72.82/1 * 0.00033 = 0.0240 = 2.40% (mol). References ...