Standard Enthalpy (Heat) of formation of liquid water at 25° C is around H 2(g)+(1/2) O 2(g) longrightarrow H 2 O (l)

Question

Standard Enthalpy (Heat) of formation of liquid water at 25° C is around H 2(g)+(1/2) O 2(g) longrightarrow H 2 O (l) (A) -237 kJ/mol (B) 237 kJ/mol (C) - 286 kJ/mol (D) 286 kJ/mol

Tardigrade Admin · Accepted Answer

(Δ Hf°) text water =-286 kJ / mol

Q. Standard Enthalpy (Heat) of formation of liquid water at $2 5^{\circ} C$ is around
$H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ H_{2} O (l)$

-237 kJ/mol

237 kJ/mol

- 286 kJ/mol

286 kJ/mol

$(Δ H_{f}^{\circ})_{water} = - 286 k J / m o l$

Q. Standard Enthalpy (Heat) of formation of liquid water at 25∘C is around H2​(g)+21​O2​(g)⟶H2​O(l)