Pick out the wrong statement?

Related Mcqs:

The following gas phase reaction is taking place in a plug flow reactor. A stoichiometric mixture of A and B at 300 K is fed to the reactor. At 1 m along the length of the reactor, the temperature is 360 K. The pressure drop is negligible and an ideal gas behaviour can be assumed. Identify the correct expression relating the concentration of A at the inlet (CA0), concentration of A at 1m (CA) and the corresponding conversion of A (X) ?

A. CA = 1.2 CA0 (1 – X)/(1 – 0.33X) B. CA = 1.2 CA0 (1 – X)/(1 – 0.5X) C. CA = 0.83 CA0 (1 – X)/(1 – 0.33X) D. CA = 0.83 CA0 (1 – X)/(1 – 0.5X)...

A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by__________________?

A. Diffusion within the pellet B. Reaction C. External mass transfer D. None of the above...

A chemical reaction occurs when the energy of the reacting molecules is __________________ the activation energy of the reaction?

A. Less than B. Equal to C. More than D. Equal to or more than...

Pick out the wrong statement ?

A. A catalyst does not alter the final position of equilibrium in a reversible reaction B. A catalyst initiates a reaction C. A catalyst is specific in reaction D. A catalyst remains unchanged in chemical composition at the end the reaction...

Fluidised bed reactor is characterized by____________________?

A. Uniformity of temperature B. Comparatively smaller equipment C. Very small pressure drop D. Absence of continuous catalyst regeneration facility...