Ideal gases 0.0 / 5 ? Applied ScienceIdeal gases BTEC NationalEdexcel Created by: Saarah17Created on: 29-10-22 20:30 Ideal gases —> an ideal gas is a theoretical model of a gas—> in a gas there are many molecules making movements which we can’t predict 1 of 5 Theoretical model of an ideal gas Assumptions : there are no intermolecular forces between the molecules the collisions are elastic (no kinetic energy in a lost between them) the volume of the molecules are negligible compared to the volume of the gas 2 of 5 Absolute temperature —> the kinetic energy of each molecule is directly proportional to the absolute temperature of said molecule—> absolute temperature is the unit for the calculations used in thermodynamics0°C = 273K( °C -> K = +273 K -> °C = -273) 3 of 5 Ideal gas equation —> pV = NkT—> PV/kT = N(p = pressure (Pa) V = volume (m^3) N = number of particles k = Boltzmans constant (1.38 x 10^-3 m^2) (kgs^-2 k^-1) T = temperature (K) 4 of 5 2 Equation can be used to calculate properties of an ideal gas :—> pV = nRT—> P = nRT/V —> V = nRT/P —> T = PV/nR(p = pressure (Pa) V = volume (m^3) n = number of moles R = gas constant (8.31) T = temperature (K) 5 of 5

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