For which of the following reactions is δhrxn equal to δhf of the product? you do not need to look up any values to answer this question. select all that apply. group of answer choices 1/2 o2(g) + h2o(g) latex: \longrightarrow ⟶ h2o2(g) na+(g) + f-(g) latex: \longrightarrow ⟶ naf(s) k(g) + 1/2 cl2(g) latex: \longrightarrow ⟶ kcl(s) o2(g) + 2 n2(g) latex: \longrightarrow ⟶ 2 n2o(g) none of the above

In none of the reactions ΔH°rxn equal to ΔH°f of the product.

Explanation:

The standard enthalpy of formation (ΔH°f) is the enthalpy change when 1 mole of a product is formed from its constituent elements in the standard states.

1/2 O₂(g) + H₂O(g) ⟶ H₂O₂(g)

ΔH°rxn is NOT equal to ΔH°f of the product because H₂O(g) is not an element but a compound.

Na⁺(g) + F⁻(g) ⟶ NaF(s)

ΔH°rxn is NOT equal to ΔH°f of the product because Na and F are not in their standard states (Na(s); F₂(g)).

K(g) + 1/2 Cl₂(g) ⟶ KCl(s)

ΔH°rxn is NOT equal to ΔH°f of the product because K is not in its standard state (K(s)).

O₂(g) + 2 N₂(g) ⟶ 2 N₂O(g)

ΔH°rxn is NOT equal to ΔH°f of the product because 2 moles of N₂O are formed.

In none of the above ΔHrxn equal to ΔHf of the product.

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.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante