having the character of a traitor; treacherous; perfidious. 2. characteristic of a traitor. 3. of the nature of treason; treasonable: a traitorous act. Origin of traitorous.
The equation of state for an ideal or perfect gas is the ideal gas law and reads. where P is the pressure, V is the volume, n is amount of gas (in mol units), R is the universal gas constant, 8.314 J/(mol K), and T is the temperature.
1 If temperature and pressure are kept constant, then the volume of the gas is directly proportional to the number of molecules of gas.  If the temperature and volume remain constant, then the pressure of the gas changes is directly proportional to the number of molecules of gas present.