The grinding in a hammer crusher takes place due to the________?

A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by________?

Fluid resistance to shear depends upon its________?

Air-refrigeration cycle________?

Mixing vessel used for the chlorination of methane to produce methyl chloride is made of________?

A ‘rupture disc’ is provided in chemical equipments as an accessory meant for ________?