Atom: the smallest particle into which an element can be divided
Atomic Number: is the number of protons in the nucleus
Atomic Mass: is the sum of protonsand electrons in the nucleus
Electron: are the negatively charged particles in an atom
Cation: an ion that has more protons than electron and is positively charged
Nucleus: is the part of anatom that contains all the mass of it and all of the positive charge
Avogadro ’s number: is the number scientist use to convert from number of atoms to masses of atoms and vice versa
KineticEnergy: is the energy possessed by matter due to its motion
Thermodynamics: is the study of the flow of energy
Pressure: is defined as force per unit area
Barometer: a device that is used thepressure exerted y the collision of gas molecules in our atmosphere with the earth
Manometer: a common laboratory device used to measure gas pressure there are two types open end and close endIdeal Gas: a gas which adheres exactly to the gas laws
Diffusion: is the process of mixing molecules of one substance through another by random molecular motionQuestions
What is the absolute 0 temperature?
Which is the state of matter that is not easily compressed but easily changes shape?
In an atom with negative charge the number ofelectrons is greater than the number of protons
How many atoms are in exactly 1 mole atoms?
•6.022 x 1023
1 standard atmosphere Atm is equal to how many torr?
•It is equal to 760 torr
1 mm ofMercury(Hg) is equal to?
Which are the 3 units of pressure?
•1 bar, 1 Pa, 1 ATM, 1 mmHg, 1 torr
When performing calculations of gas laws the temperature must be expressed in what unit?
•KelvinStandard temperature and pressure is defined as?
•0°C(273.15 K) and 1 atm or 760 torr
Combining boyle’s law, charles’ law,and avogadro’s law qives what equation?
•The ideal Gas equation: PV=nRT...