DF - Equations

• C-> K +273

  K-> C -273
• $E=$$m.c.T$

  E= change in thermal energy (kJmol^-1)

  m= mass of water (g)

  c= specific heat capacity of water (4.18Jg^-1K^-1)

  Delta T= change in water temperature (k)
• Volume of gas = moles of gas x 24dm^3
• pV=nRT

  p= Pressure (Pa)

  V= Volume (cm^3)

  n= Amount of gas (moles)

  R= Gas constant

  T= Temperature (K)
• percentage yield= (actual yield / theoretical yield) x 100
• $E=$$hv$


  E= Energy (J)

  h= Planck's constant

  v = Frequency (Hz)
• c=vλ

  V= Frequency (Hz)

  C= Speed of light

   λ = Wave length (m)
• How do you calculate bond enthalpy from frequency?

  Frequency -> energy

  • E= hv
  • Joules -> Kilojoules
  • ÷1000
  • Kilojoules -> kJ mol-1
  • kJ x 6.02x10^23