The main product in the dehydration of ethyl alcohol in the presence of ${\mathrm{H}}_2{\mathrm{SO}}_4$ at 413 K

When ethanol reacts with conc.H2SO4 at 413 K, inter molecular dehydration takes place and the product formed is Ethoxy ethane.

$2{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}\stackrel{{\mathrm{H}}_2{\mathrm{SO}}_4\text{ at }140°\mathrm{C}(413 \mathrm{K})}{⟶}{\mathrm{C}}_2{\mathrm{H}}_5-\mathrm{O}-{\mathrm{C}}_2{\mathrm{H}}_5+{\mathrm{H}}_2\mathrm{O}$