A catalyst in a chemical reaction____________________?

Related Mcqs:

On application of pressure to the equilibrium system, ice ⇌ water; which of the following phenomenon will occur ?

A. Water will evaporate B. Equilibrium will not be attained C. More ice will be formed D. More water will be formed...

Pick out the correct statement ?

A. A catalyst speeds up the forward reaction but slows shown the reverse reaction B. Addition of catalyst changes the equilibrium constant C. Pressure changes do not change the equilibrium concentrations D. The composition of equilibrium is changed by catalyst...

A stirred tank reactor compared to tubular-flow reactor provides____________________?

A. More uniform operating conditions B. Permits operation at the optimum temperature for a long reaction time C. Higher overall selectivity for a first order consecutive reaction D. All A., B. and C....

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A. 0.33 B. 0.5 C. 1 D. Data insufficient, can’t be predicted...

A space velocity of 5 hr-1 means that ___________________?

A. Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour B. After every 5 hours, reactor is being filled with the feed C. Cent per cent conversion can be achieved in at least 5 hours D. A fixed conversion of a given batch of feed takes 5 hours...