Chemical Reaction Engineering Transition state theory gives the rate constant as K α e-E/RT K α eE/RT K α T . e-E/RT K α √T . e-E/RT K α e-E/RT K α eE/RT K α T . e-E/RT K α √T . e-E/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is a controlling factor in very fast heterogeneous reaction? Composition of reactant Heat and mass transfer effects Temperature Pressure Composition of reactant Heat and mass transfer effects Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cxn, the value of 'n' in this case will be 2 1 3 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A rise in temperature Does not affect photo-chemical reaction rates All of these Does not affect a catalysed reaction Normally tends to increase the reaction rate Does not affect photo-chemical reaction rates All of these Does not affect a catalysed reaction Normally tends to increase the reaction rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle) Decreases Changes unpredictably Increases Remains unaltered Decreases Changes unpredictably Increases Remains unaltered ANSWER DOWNLOAD EXAMIANS APP
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 K3 = (K₁.K₂)0.5 K3 = (K₁.K₂)2 K3(K₁+K₂)/2 K3 = K₁.K₂ K3 = (K₁.K₂)0.5 K3 = (K₁.K₂)2 K3(K₁+K₂)/2 ANSWER DOWNLOAD EXAMIANS APP
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