Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be 0.5τ τ/0.693 0.693τ 2τ 0.5τ τ/0.693 0.693τ 2τ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the hydrodealkylation of toluene to benzene, the following reactions occur:C₇H₈ + H₂ → C₆H₆ + CH₄2C₆H₆ ⇋ C₁₂H₁₀ + H₂Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is 0.144 0.16 0.136 0.152 0.144 0.16 0.136 0.152 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering As the chemical reaction proceeds, the rate of reaction Decreases May increase or decrease depending on the type of reaction Remains same Increases Decreases May increase or decrease depending on the type of reaction Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reactions with high activation energy are Always irreversible Very temperature sensitive Temperature insensitive Always reversible Always irreversible Very temperature sensitive Temperature insensitive Always reversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. High labour and handling cost All of these High shutdown time requirement for emptying, cleaning and refilling Poor product quality control High labour and handling cost All of these High shutdown time requirement for emptying, cleaning and refilling Poor product quality control ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is 1 3 2 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
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