When $I_2$ dissociates to its atomic form the following reaction occurs:
$I_{2(g)} \rightleftharpoons 2I_{(g)} ; \Delta_r H^o = +150 \ kJ \ mol^{-1}$
The forward reaction is favoured at:

  • A
    low temperature
  • B
    high temperature
  • C
    no change with temperature
  • D
    high pressure

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