Chemical Reaction Engineering Half life period of decomposition of a liquid 'A' by irreversible first order reaction is 12 minutes. The time required for 75% conversion of 'A' is __________ minutes. 12 6 24 18 12 6 24 18 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ catalytic reaction is involved in the thermal cracking of gas oil. Heterogeneous non Homogeneous non Homogeneous Heterogeneous Heterogeneous non Homogeneous non Homogeneous Heterogeneous ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 2.24 2.5 1.6 2 2.24 2.5 1.6 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the Temperature is reduced and pressure is increased Temperature is increased Temperature is increased and pressure is reduced Pressure is reduced Temperature is reduced and pressure is increased Temperature is increased Temperature is increased and pressure is reduced Pressure is reduced ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Increases Remains unaffected Decreases Unpredictable from the data Increases Remains unaffected Decreases Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A rise in temperature 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 Does not affect a catalysed reaction Normally tends to increase the reaction rate All of these ANSWER DOWNLOAD EXAMIANS APP