BONDS are the INTRAMOLECULAR FORCES holding the atoms in molecules together...What holds the molecules of a solid or liquid together?...INTERMOLECULAR FORCES. In an ideal gas, these forces between molecules are nonexistent.
Pressure
The atoms or molecules making up a gas are colliding with each other and their surroundings. Gas pressure is expressed in PASCALS which still express FORCE per unit AREA (N/m2 or kg/ms2)
1 atm = 760 mm Hg = = 29.921 in Hg = 760 Torr = 101.325 kPa = 1.01325 bar
gas pressure is measured with an open- or closed-ended manometer
Gas Laws
Boyle 
Charles 
Avogadro 
Combined 
The above are IDEAL gas laws
Assumptions in the ideal law:Particles do not interact
Particles are "point masses"...they have no size...they occupy no space
REAL gas deviations
Particles do have some attraction for each other- pressure measured is LESS than ideal
Particles do occupy space- the volume measured is LESS than actual
Kinetics