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CHEM 219 Exam - 3 questions with answers
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CHEM 219 Exam - 3 questions with answers
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CHEM 219 Exam # 3 questions withanswers
Avogadro's Law - ANSWERS✔✔ equal volumes of gases at the same
temperature and pressure contain equal numbers of molecules
Boyle's Law - ANSWERS✔✔ Boyle's Law states that at constant temperature
and moles, pressure and volume are inversely proportional.
Mathematically this is written as: PV = PV
Charles' Law - ANSWERS✔✔ the law that states that for a fixed amount of gas
at a constant pressure, the volume of the gas increases as the temperature of
the gas increases and the volume of the gas decreases as the temperature of
the gas decreases
Gay-Lussac's Law - ANSWERS✔✔ the pressure of a gas is directly proportional
to the Kelvin temperature if the volume is constant
Combined Gas Law - ANSWERS✔✔ the relationship between the pressure,
volume, and temperature of a fixed amount of gas
Ideal Gas Law - ANSWERS✔✔ PV=nRT
R=.0821
, If 5.00 g of Gas A and 5.00 g of Gas B are mixed in the same container, and the
partial pressure of Gas B is determined to be twice that of Gas A, what do we
know about the gases? - ANSWERS✔✔ If Gas A has half the partial pressure of
Gas B, this indicates that there are fewer moles of it at the same mass, and
therefore Gas A has twice the molar mass of Gas B
mol fraction and partial pressure - ANSWERS✔✔ the formula for both
Amonton's Law - ANSWERS✔✔ if the volume of a gas is held constant,
increasing the temperature of the gas increases its pressure.
Boyle's Law
in terms of KE - ANSWERS✔✔ Volume decreased, wall area decreased =
increased pressure
Avagadro's Law
in terms of KE - ANSWERS✔✔ Container pressure constant, more gas
molecules added = increased volume
Dalton's Law - ANSWERS✔✔ The total pressure of a mixture of gases is the
sum of the individual pressures (Ptotal=P1+P2+P3...)
The kinetic energy (KE) of a particle of mass (m) and speed (u) is given by -
ANSWERS✔✔ KE = 1/2 mu^2
The KE avg of a collection of gas molecules is also directly proportional to the
temperature of the gas and may be described by the equation - ANSWERS✔✔
KEavg = 3/2 RT
Kinetic Molecular Theory - ANSWERS✔✔ The Kinetic Molecular Theory states:
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