Calcula la entalpía para la reacción siguiente: Sn (S) + Cl2 (g) > SnCl2 (S)

A partir de la información que se proporciona a continuación:

Sn (S) + 2Cl2 (g) > SnCl4 (S) ∆H°reacción =-545,2 Kj

SnCl2 (S) + Cl2 (g) > SnCl4 (l) ∆H°reacción =-195,4 K

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.