Calculate the enthalpy change for the thermite reaction: 2al(s)+fe2o3(s)→2fe(s)+al2o3(s), δh∘rxn=−850 kj when 6.00 mol of al undergoes the reaction with a stoichiometrically equivalent amount of fe2o3.

Answer is: the enthalpy change for the thermite reaction is -2550 kJ.

Balanced chemical reaction: Fe₂O₃(s) + 2Al(s) → 2Fe(s) + Al₂O₃(s).

ΔHrxn = -850 kJ; enthalpy of thermite reaction.

n(Al) = 6.00 mol; amount of the aluminium.

From the balanced chemical reaction make proportion:

2 mol : -850 kJ = 6 mol : ΔH.

ΔH = -850 kJ · 6 mol ÷ 2 mol.

ΔH = -2550 kJ; enthalpy from 6 moles of aluminium.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.