Chemical Reaction Engineering
In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure?

N₂ + O₂ ⇋ 2NO
PCl3 + Cl₂ ⇋ PCl5
N + 3H₂ ⇋ 2NH₃
2SO₂ + O₂ ⇋ 2SO₃

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Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Catalyst size is increased or the catalyst diffusivity is reduced
Catalyst size is reduced or the catalyst diffusivity is reduced
Catalyst size is reduced or the catalyst diffusivity is increased
Catalyst size is increased or the catalyst diffusivity is increased

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Chemical Reaction Engineering
A Catalyst

Shortens the time to reach the equilibrium
Changes the equilibrium constant of the reaction
Increases the equilibrium concentration of the product
None of these

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