61. The reason why a catalyst increases the rate of reaction is that, it
62. A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length
63. __________ catalytic reaction is involved in the thermal cracking of gas oil.
64. A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.
65. In the reversible reaction of the type, A + B ⇋ AB, in general
66. Which of the following is not a dimension-less group used in catalysis? (where, D = dispersion co-efficient, cm2/sec. D1 = diffusion co-efficient, cm²/sec. L = length of the reactor, cm. t = time, sec, v = volumetric flow rate, cm3/sec. V = volume, cm3.)
67. Holding time for flow reactors is __________ the space time, for constant fluid density
68. Given,
3H2 + CO = CH4 + H2O, KP = 101.84 and 4H2 + CO2 = CH4 + 2H2O, KP = 101.17
the KP for the reaction CO + H2O = CO2 + H2 is
3H2 + CO = CH4 + H2O, KP = 101.84 and 4H2 + CO2 = CH4 + 2H2O, KP = 101.17
the KP for the reaction CO + H2O = CO2 + H2 is
69. Rate of a chemical reaction is not affected by the
70. Semibatch reactor is preferred, when a/an
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