Answer to Question #123149 in General Chemistry for george

Question

Determine where the following equilibrium reactions favour high pressure for forward
reactions to occur
(i) 2SO2(g) + O2(g) ⇄ 2 SO3(g)
(ii) PCl5(g) ⇄ PCl3(g) + Cl2(g)

Answer 1

$The\space Le\space\space Chatelier's\space principle\space shows\space how\space the\space conditions\space of\newline an\space equilibrium\space affects\space the\space equilibrium\space when\space they\space are\space changed.\newline These\space conditions\space include\space pressure,\space temperature\space and\space\newline concentrations.\newline \space\space In\space 2SO2(g)+O2(g)\leftrightarrows2SO3(g)\newline High\space pressure\space favours\space the\space foward\space reaction\space since\space the\space product\space side\newline has\space lesser\space number\space of\space moles(2)\space than\space the\space reactants\space side\space which\space has\newline3moles\space.\newline \space\space InPCl5(g)\leftrightarrows PCl3(g)+Cl(g) \newline High\space pressure\space won't\space favour\space the\space forward\space reaction\space since\space the\newline product\space side\space has\space a\space higher\space number\space of\space moles\space than\space reactants\space side.\newline Equilibrium\space will\space shift\space to\space the\space right.$