The heat of formation of C2H5OH(l) is -66 kcal/mole. The heat of combustion of CH3OCH3(g) is -348 kcal mole, ΔHf for H2O and CO2 are - 68 kcal/mole and -94 kcal/mole respectively. Then determine the ΔH for the isomerisation reaction C2H5OCH3(g), and ΔE for the same are at T = 25∘C