Chemical Reaction

The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the_________________?

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The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the_________________?

A. Increased temperature reduces the activation energy
B. Fraction of molecules having threshold energy increases
C. Collision frequency increases
D. Value of threshold energy decreases

Promoter_____________________?

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Promoter_____________________?

A. Initiates a chemical reaction and is a catalyst by itself
B. Alters the position of equilibrium in a reversible reaction
C. Increases the number of active centres by increasing the unevenness of catalyst surface and by
creating discontinuities in the crystals
D. All A., B. and C.

In the hydrodealkylation of toluene to benzene, the following reactions occur: C7H8 + H2 → C6H6 + CH4 2C6H6 ⇌ C12H10 + H2 Toluene 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_______________________?

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In the hydrodealkylation of toluene to benzene, the following reactions occur: C7H8 + H2 → C6H6 + CH4 2C6H6 ⇌ C12H10 + H2 Toluene 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_______________________?

A. 0.16
B. 0.144
C. 0.152
D. 0.136

Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about _______________ minutes?

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Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about _______________ minutes?

A. 3
B. 4
C. 6
D. 10