Chemical Reaction Engineering
At a given temperature, K₁, K₂ and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g), CO(g) + H₂O(g) ⇋ CO₂(g) + H₂(g) CH₄(g) + 2H₂O(g) ⇋ CO₂(g) + 4H₂(g) Then K₁, K₂ and K3 are related as:

K3 = (K₁.K₂)0.5
K3 = K₁.K₂
K3 = (K₁.K₂)2
K3(K₁+K₂)/2

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Chemical Reaction Engineering
A catalyst loses its activity due to

All of these
Loss in surface area of the active component
Agglomeration of metal particles caused by thermal sintering of the solid surface
Covering of the catalytic active sites by a foregin substance

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