Flashcards
Gas Laws And The Mole
Flashcards do conjunto (24)
- 1Particles in solidsTightly bound - fixed volume, fixed shape
- 2Percentage increase in volume when a solid becomes a liquidbetween 5% and 30%
- 3Particles in liquidsSlip and slide past eachother - fixed volume, no fixed shape
- 4Particles in gasesRelatively free from each other - no fixed volume, no fixed shape (can be compressed)
- 5—Solid
- 6—Liquid
- 7—Gas
- 8DiffusionThe spontaneous spreading out of a substance due to the natural movement of its particles.
- 9Boyles lawAt constant temperature, the volume of a given mass of any gas is inversely proportional to the pressure of the gas
- 10Charles lawAt a constant pressure, a volume of a given mass of any gas is directly proportional to the Kelvin temperature
- 11Gay Lussacs lawWhen gases react, the volumes consumed in the reaction bear a simple whole number ratio to each other, and to the volumes of any gaseous products of the reaction, all volumes being measured under the same conditions of temperature and pressure
- 12—Boyles law
(At a constant temperaturet,the volume of a given mass of any gas is inversely proportional to the pressure of the gas)
- 13—Charles law
(At a constant pressure, the volume of a given mass of any gas is directly proportional to the Kelvin temperature)
- 14Avogadro's lawEqual volumes of gases, under the same conditions of temperature and pressure, contain equal numbers of molecules.
- 15A mole of a substanceThe amount of a substance that contains as many particles as there are atoms of C-12 in 12g of C-12.
- 16Relative molecular massThe average mass of a molecule of the substance relative to 1/12th the mass of an atom of C-12
- 17Molar massThe mass in grams of one mole of a substance
- 18—The combined gas law
- 19The kinetic theory of gases - spaces between gas particles -forces between particles -motion -kinetic energy -energyDiameters of particles are negligible in comparison to the spaces between them
No attractive or repulsive forces between particles
In constant rapid motion colliding with each other and with the walls of their container
The average kinetic energy is proportional to the Kelvin temperature
Collisions are perfectly elastic (no energy loss - rebound with the same speed) - 20When is the kinetic theory completely valid?ideal gases
- 21Ideal gasPerfectly obeys all gas laws under all conditions of temperature and pressure
- 22When does the behaviour of real gases deviate most from that of an ideal gas?Under conditions of low temperature and high pressure (diameters not negligible compared to the spaces between them, attractive forces exist)
- 23Volatile liquidA liquid that is easily vapourised
- 24Equation of state for an ideal gasPV=nRT
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- Leaving Certificate Chemistry (Gas Laws And The Mole) FlashCards sobre Gas Laws And The Mole, criado por eimearkelly3 em 22-09-2013.
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