The equilibrium constants for A 2( g ) leftharpoons 2 A ( g ) at 400 K and 600 K are 1 × 10-8 and 1 × 10-2 respectively. The reaction is

Question

The equilibrium constants for A 2( g ) leftharpoons 2 A ( g ) at 400 K and 600 K are 1 × 10-8 and 1 × 10-2 respectively. The reaction is (A) Exothermic (B) Endothermic (C) May be exothermic or endothermic (D) No heat is evolved or absorbed

Tardigrade Admin · Accepted Answer

A 2( g ) leftharpoons 2 A ( g ) From the data, heating leads to increase in K c ⇒ leads to increase in product formation ∴ Reaction is endothermic in nature.

Q. The equilibrium constants for $A_{2} (g) ⇌ 2 A (g)$ at $400 K$ and $600 K$ are $1 \times 1 0^{- 8}$ and $1 \times 1 0^{- 2}$ respectively. The reaction is

Exothermic

Endothermic

May be exothermic or endothermic

No heat is evolved or absorbed

$A_{2} (g) ⇌ 2 A (g)$
From the data,
heating leads to increase in $K_{c}$
$\Rightarrow$ leads to increase in product formation
$∴$ Reaction is endothermic in nature.

Q. The equilibrium constants for A2​(g)⇌2A(g) at 400K and 600K are 1×10−8 and 1×10−2 respectively. The reaction is