Chemical Reaction Engineering A space time of 3 hours for a flow reactor means that Conversion is cent per cent after three hours It takes three hours to dump the entire volume of the reactor with feed The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours Three reactor volumes of feed can be processed every hour Conversion is cent per cent after three hours It takes three hours to dump the entire volume of the reactor with feed The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours Three reactor volumes of feed can be processed every hour ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given temperature, K₁, K₂ and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g), CO(g) + H₂O(g) ⇋ CO₂(g) + H₂(g) CH₄(g) + 2H₂O(g) ⇋ CO₂(g) + 4H₂(g) Then K₁, K₂ and K3 are related as: K3 = (K₁.K₂)2 K3 = K₁.K₂ K3 = (K₁.K₂)0.5 K3(K₁+K₂)/2 K3 = (K₁.K₂)2 K3 = K₁.K₂ K3 = (K₁.K₂)0.5 K3(K₁+K₂)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the rate constant obeying Arhenious equation Increases Can either increase or decrease ; depends on the frequency factor Decreases exponentially Decreases Increases Can either increase or decrease ; depends on the frequency factor Decreases exponentially Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Variables affecting the rate of homogeneous reactions are Pressure, temperature and composition Temperature and composition only Pressure and temperature only Pressure and composition only Pressure, temperature and composition Temperature and composition only Pressure and temperature only Pressure and composition only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Highly temperature sensitive Insensitive to temperature changes Mostly irreversible Always irreversible Highly temperature sensitive Insensitive to temperature changes Mostly irreversible Always irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order reaction, the concentration of product increases with the Increase of reaction time Total pressure Increase in initial concentration Decrease in total pressure Increase of reaction time Total pressure Increase in initial concentration Decrease in total pressure ANSWER DOWNLOAD EXAMIANS APP
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