Chemical Engineering — Test 58

Pick out the wrong statement. Raoult’s law does not apply, when the______________________?

The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C?

Plate efficiency in a distillation column is reduced due to the ______________________ of liquid?

Blowdown in a cooling tower____________________?

In extraction, as the temperature increases, the area of heterogeneity (area covered by binodal curve)________________?

Rayleigh’s equation applies to _________________ distillation?

The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?

For a binary mixture with low relative volatility________________?

The Hatta number is important in______________________?

A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))_____________?