Gas Laws

• Gas is a state of matter consisting of particles that have neither a defined volume nor defined shape
• Gases diffuse very rapidly
• Gases can be readily compressed
• Gases have low density
• Gases are readily soluble
• Gases have a widely separated particle arrangement
• Gases have a free motion
• The Kinetic Molecular Theory describes the behavior of matter in terms of the movement of particles.
• According to the Kinetic Molecular Theory: Gases have no definite volume
• According to the Kinetic Molecular Theory: Gases undergo perfectly elastic collisions
• According to the Kinetic Molecular Theory: Gases are in constant, random, straight-line motion
• According to the Kinetic Molecular Theory: Gases don't attract or repel each other
• According to the Kinetic Molecular Theory: Gases have an average kinetic energy
• Real Gases lose energy in collisions
• Real Gases' particles have volume
• Real Gases have intermolecular forces
• Ideal Gas have no interactions between particles
• Ideal Gases' collisions are elastic
• The particles of Ideal gas have no volume
• Real Gases behave like Ideal Gases at high temperatures at low pressures
• Pressure is defined as the force the gas exerts on a given area of the contained in which it is contained
• Volume is the three dimensional space inside the container holding gas
• Temperature is an objective measurement of hot or cold an object is.
• STP is acronym for Standard Temperature and Pressure
• Standard temperature is 273 K
• Standard pressure is 1 atm
• the unit for the amount of substance is mole (mol)
• Boyle's Law= Pressure-volume relationship
• Boyle's Law- At constant pressure and fixed mass, the volume is inversely proportional to the applied pressure.
• Charle's Law= Temperature-volume relationship
• Charle's Law- At constant pressure, the volume is directly proportional to its temperature
• Charle's Law- As the temperature of any particular gas increases, the molecules in that gas exhibit increased movement.
• Gay-Lussac's Law= Pressure-temperature relationship
• Combined Gas Law- Derived from the relationships among the three properties of a gas-pressure, volume, and temperature.
• Combined Gas Law= (P1 x V1)/T1=(P2 x V2)/T2
• F= 1.8C+32
• C= (F-32)/1.8
• K= C+273
• Charle's Law= V1/T1=V2/T2
• Gay-Lussac's Law= P1/T1=P2/T2