For which of the following reactions is product formation favoured by low pressure and high temperature?

• A

  ${\mathrm{CO}}_2( \mathrm{g})+\mathrm{C}\left(\mathrm{s}\right)\rightleftharpoons 2\mathrm{CO}\left(\mathrm{g}\right); \mathrm{\Delta H}°=172.5 \mathrm{kJ}$

• B

  $\mathrm{CO}\left(\mathrm{g}\right)+2{\mathrm{H}}_2( \mathrm{g})\rightleftharpoons {\mathrm{CH}}_3\mathrm{OH}; \mathrm{\Delta H}°=-21.7 \mathrm{kJ}$

• C

  $2{\mathrm{O}}_3\left(\mathrm{g}\right)\rightleftharpoons 3{\mathrm{O}}_2\left(\mathrm{g}\right); \mathrm{\Delta H}°=-285 \mathrm{kJ}$

• D

  ${\mathrm{H}}_2\left(\mathrm{g}\right)+{\mathrm{F}}_2\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{HF}\left(\mathrm{g}\right); \mathrm{\Delta H}°=-541 \mathrm{kJ}$