For the following reactions, predict the direction of the shift in equilibrium position in response to the following changes: \text { 1) } \mathrm{As}_{4} \mathrm{O}_{6}(\mathrm{~s})+6 \mathrm{C}(\mathrm{s}) \leftrightarrows \mathrm{As}_{4}(\mathrm{~g})+6 \mathrm{CO}(\mathrm{g}) a) addition of carbon monoxide b) removal of gaseous arsenic (AS4) \text { 2) } \mathrm{CO}(\mathrm{g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \leftrightarrows \mathrm{H}_{2}(\mathrm{~g})+\mathrm{CO}_{2}(\mathrm{~g}) a) water vapour is added b) gaseous carbon dioxide is removed

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