Chemistry - Gases Flashcards

Terms Definitions
Charle's Law
V/T
Boyles Law Equation
P1V1=P2V2
torricelli
who invented the barometer?
101.325
1 ATM = ________ kPa
barometer
an instrument that measures atmospheric pressure
n
In Avogadro's Theory, V is proportional to...
Kinetic-Molecular Theory
central model that explains microscopic gas behavior at the level of individual particles
T
In Charle's Law, V is proportional to....
Graham
_____'s law is derived from the equation combining Boyle's, Charles's, Gay-Lusaac's, and Avogadro's law.
ideal gas constant
the proportionality constant that appears in the equation of state fo 1 mole of an ideal gas; R = (0.0821 L x atm)/(molxK)
Convert 300K into degrees celcius
27 degrees celsius
24.8L/mol
one mole of any gas at SATP occupies....
higher
the warmer a gas, the ____ the pressure.
Real Gases
not ideal, volume determined by their atoms size, attractive and repulsive forces among other molecules
atmospheric pressure
results from the collisions of atoms and molecules in air with objects.
What number do you add to convert degrees celsius to kelvin?
273!!
Boyles Law
the volume occupied by a gas is inversely related to its pressure
crystalline solid
a solid whose atoms , ion, or molecules are arranged in an orderly geometric, three dimensional sturcture
0 degrees Celsius and 1 ATM
STP (Standard Temperature and Pressure) conditions are....
stay the same
if volume increases and temp stays the same, the pressure will
vapor pressure
the pressure exerted by a vapor over a liquid
What does the Charles law state?
The volume (V) increases proportionally as the temperature (T) increases
normal boiling point
point of a liquid at a pressure of 101.3 kpa
What is the molar volume of a gas at SATP?
24.8 L/Mol
universal gas constant
R in the ideal gas law is known as the....
What is the formula for the combined gas law?
p1v1 = p2v2------------ T1 T2
The Ideal Gas Law
pV = nRT, where R is the universal gas constant
P₁V₁ = P₂V₂
Gay-Lussac's Law
P/T
Charles Law Equation
V1/T1=V2/T2
pressure
force per unit area
1
101.325 kPa = _______ ATM
SATP
25 degrees and 100 KPa
volume
Coefficients in a balanced chemical equation involving diatomic gases do not indicate ____.
millimeters of mercury
a unit of pressure
force per unit area
Pressure is measured as....
diffusion
process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
hydrogen bond
attraction between hydrogen in one molecule to O, N, Cl, F in another molecule
French physicist Jacques Charles determined the relationship between the ______ and ______ of a gas
temperature and volume
elastic collision
collision in which no kinetic energy is lost; kinetic energy can be transferred between colliding particles but the total kinetic energy remains the same.
22.4L/mol
one mole of any gas at STP occupies....
masses
at same temp and pressure, balloons of equal volume will have equal ____.
Grahams Law of Effusion Equation
Rate1/Rate2=square root of (M2/M1)
melting point
the temperature at which a crystalline solid becomes a liquid
standard atmosphere
is the pressure required to support 760 mm of mercury in a mercury barometer at 25 celsius
pascal
the SI unit of pressure; one of these is equal to a force of one newton per square meter.
partial pressure
the pressure of each gas in a mixture
gas pressure
results from the force exerted by a gas per unit surface area of an object.
temperature and the pressure
Gay-Lusac's Law ONLY works if the ________________________ remain constant
Grahams Law of Effusion
rate of effusion is inversely related to the square root of its molar mass
amorphous solid
a solid in which the particles are not arranged in a regular, repeating pattern
what is the formula for molar volume?
n= v --- V
Graham's law of effusion
states that the rate of effusion for a gas is inversly proportional to the square root of its molar mass.
increases, decreases, temperature, amount of gas
Boyle's Law: as the pressure on a gas ________, the volume of the gas ________ proportionally, provided that the ________ and the _____________________ remain constant.
What formula do we use when we need to find the relationship of amount in moles, mass and molar mass?
n= m -- M
What is the formula used in the Charles Law?
V1 = V2-- --T1 = T2
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