Chemical Reaction Engineering For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times. 12 16 32 8 12 16 32 8 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Film diffusion Chemical reaction Pore diffusion Ash layer diffusion Film diffusion Chemical reaction Pore diffusion Ash layer diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a/an __________ chemical reaction, conversion increases with the rise in temperature. Reversible exothermic Reversible endothermic Irreversible exothermic Irreversible endothermic Reversible exothermic Reversible endothermic Irreversible exothermic Irreversible endothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance. Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space time in flow reactor is The reciprocal of the space velocity Both A and B A measure of its capacity Usually equal to the residence time The reciprocal of the space velocity Both A and B A measure of its capacity Usually equal to the residence time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Independent of Inversely proportional to Proportional to Proportional to the square of Independent of Inversely proportional to Proportional to Proportional to the square of ANSWER DOWNLOAD EXAMIANS APP
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