For the combustion reaction at 298 K H 2( g )+(1/2) O 2( g ) arrow H 2 O (ℓ) Which of the following alternative (s) is/are correct?

Question

For the combustion reaction at 298 K H 2( g )+(1/2) O 2( g ) arrow H 2 O (ℓ) Which of the following alternative (s) is/are correct? (A) Δ H =Δ E (B) Δ H >Δ E (C) Δ H <Δ E (D) Δ H and Δ E has no relation with each other

Tardigrade Admin · Accepted Answer

Δ n = - (1/2) - 1 = -(3/2) Since, Δ n < 0 ∴ Δ H < Δ E

Q. For the combustion reaction at $298 K$
$H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (ℓ)$
Which of the following alternative (s) is/are correct?

$Δ H = Δ E$

$Δ H > Δ E$

$Δ H < Δ E$

$Δ H$ and $Δ E$ has no relation with each other

$Δ n = - \frac{1}{2} - 1 = - \frac{3}{2}$
Since, $Δ n < 0$
$∴ Δ H < Δ E$

Q. For the combustion reaction at 298K H2​(g)+21​O2​(g)→H2​O(ℓ) Which of the following alternative (s) is/are correct?

ΔH=ΔE

ΔH>ΔE

ΔH<ΔE

ΔH and ΔE has no relation with each other