Q. Pick out the wrong statement.

View solution

Q. A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

View solution

Q. Which of the following is not fixed by the process requirements, in the design of absorbers ?

View solution

Q. If the amount of the steam used in steam distillation is increased, the temperature of distillation

View solution

Q. The Hatta number is important in

View solution

Q. When a multistage tray tower uses a minimum reflux ratio, it implies

View solution

Q. CO₂ can be absorbed by

View solution

Q. For the same process conditions, the reflux ratio of an unlagged distillation column

View solution

Q. An ideal tower packing should not

View solution

Q. For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.

View solution

Q. What is the degree of freedom of an absorption process in which only one component is transferred between phases ?

View solution

Q. Sticky material can be dried in a __________ dryer.

View solution

Q. Langmuir equation is associated with

View solution

Q. During the constant rate period of drying of a solid,

View solution

Q. With increase in the concentration of the adsorbate, the integral heat of adsorption

View solution

Q. Small dia distillation column can be a

View solution

Q. If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

View solution

Q. An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is

View solution

Q. __________ column is used in gas absorption process.

View solution

Q. The relative saturation of an unsaturated mixture of gas and vapor is independent of the

View solution