Module 4 Thermal Physics Basics

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  • Created by: Aoife
  • Created on: 15-01-13 23:23
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  • Thermal Physics
    • Boyle's Law : The pressure of a fixed mass of gas is inversely proportional to to its volume if the temperature is constant.
    • Pressure Law: The pressure of a fixed mass of gas is directly proportional to it's temperature in Kelvin provided the volume is constant.
    • Charles' Law: The volume of a  fixed mass of gas is directly proportional to the temperature in Kelvin provided the pressure is constant.
    • PV/T = constant
      • Depends on mass of gas
        • For 1 mole, R = 8.31Jmol^-1K^-1
    • pV = nRT
    • pV = 1/3 Nm <c^2>
      • p = 1/3Nm<c^2> / V
        • p = 1/3xdensityx<c^2>
    • The Boltzman Constant = R/NA = k = 1.38x10^-23JK^-1
    • Average molecular kinetic energy where m=mass 1 molecule 1/2m<c^2> = 3/2kT
    • Q=m x c x change in temperature

Comments

danmeegan

nice

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