<p>For the chemical reaction&nbsp;</p>

<p><math xmlns="http://www.w3.org/1998/Math/MathML" class="wrs_chemistry"><mn>3</mn><mi mathvariant="normal">X</mi><mo>(</mo><mi mathvariant="normal">g</mi><mo>)</mo><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mi mathvariant="normal">Y</mi><mo>(</mo><mi mathvariant="normal">g</mi><mo>)</mo><mo>&#160;</mo><mo>&#8652;</mo><msub><mi mathvariant="normal">X</mi><mn>3</mn></msub><mi mathvariant="normal">Y</mi><mo>(</mo><mi mathvariant="normal">g</mi><mo>)</mo></math>&nbsp;the amount of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>X</mi><mn>3</mn></msub><mi>Y</mi></math>&nbsp;at equilibrium is not affected by</p>