Azeotropism for ethyl alcohol-water system disappears by

Related MCQs

• Water-ethyl alcohol solution can be concentrated (in respect of alcohol concentration) by __________ distillation.
• The boiling points of pure components of a binary system __________ with increase in total pressure of the system.
• If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that
• Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 × 10-3 kg mole/m2 .s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is:
• For the same system, if the same liquid used in an absorber is decreased, the tower height will
• When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system,
• 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.
• For water-ethanol system, the minimum reflux ratio
• For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.
• Which of the following provides maximum contact surface for a liquid-vapour system?