Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it None of these Increases the activation energy Decreases the energy barrier for reaction Decreases the molecular collision diameter None of these Increases the activation energy Decreases the energy barrier for reaction Decreases the molecular collision diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ CO₂ escapes continuously Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ CO₂ escapes continuously ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A rise in temperature Does not affect a catalysed reaction Normally tends to increase the reaction rate All of these Does not affect photo-chemical reaction rates Does not affect a catalysed reaction Normally tends to increase the reaction rate All of these Does not affect photo-chemical reaction rates ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will Remain the same Also be doubled Be halved Become one fourth Remain the same Also be doubled Be halved Become one fourth ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is 1 3 2 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Active at cryogenic temperatures only Proteinous in nature Active at very high temperature only Prohibitively costly Active at cryogenic temperatures only Proteinous in nature Active at very high temperature only Prohibitively costly ANSWER DOWNLOAD EXAMIANS APP
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