Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?

The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same system is________?

In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed________?

Molten phthalic anhydride is stored in a/an ________ vessel?

Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct?

25 per cent cut segmental baffle means that the baffle________?