Q141
Open questionA batch reactor is characterised by
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Chemical Engineering · all questionsChemical Reaction Engineering
Chemical Reaction Engineering
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Q142
Open questionIn a continuous flow stirred tank reactor, the composition of the exit stream
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Q143
Open questionRate of a chemical reaction is not influenced by the
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Q144
Open questionA catalyst inhibitor
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Q145
Open questionExothermic reactions are best carried out in
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Q146
Open questionA chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.
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Q147
Open questionFor nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
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Q148
Open questionSlurry reactors are characterised by the
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Q149
Open questionSulphuric acid is used as a catalyst in the
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Q150
Open questionThe half life period of a first order reaction is
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Q151
Open questionIn case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is
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Q152
Open questionThe concentration of A in a first order reaction, A → B, decreases
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Q153
Open questionA second order reaction of the form A + B → C is called a pseudo-first order reaction, when
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Q154
Open questionPick out the correct statement.
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Q155
Open questionArrhenious equation represents graphically the variation between the __________ and temperature.
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Q156
Open questionHelium-mercury method is used for the measurement of the __________ of the catalyst.
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Q157
Open questionSum of the powers of the concentration terms in the rate equation is called the __________ of the reaction.
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Q158
Open questionThe value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.
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Q159
Open questionThe reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m3 is fed to the reactor at the rate of 0.01 m3/s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k) is (Data: Heat of reaction at 298 K = -50000 kJ/kmole of A reacted Heat capacities CPA = CPB = 100 kJ/kmole. K (may be assumed to be independent of temperature))
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Q160
Open questionVariables affecting the rate of homogeneous reactions are
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