35202. 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
35203. Which of the following is an undesirable property in a tower packing ?
35204. Water entrained by circulating air in cooling towers is termed as
35205. A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is
35206. With increase in temperature, the rate of leaching increases, because the
35207. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.
35208. The Kundsen diffusivity is proportional to (where, T = absolute temperature)
35209. In case of constant underflow extraction operation, the __________ at all solute concentration.
35210. In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.
35211. The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.)
35212. With increase in temperature, the leaching rate increases because of the
35213. Leaching of uranium ore and gold ore is done in
35214. Blowdown in a cooling tower
35215. During constant rate period, the rate of drying decreases with the
35216. Antibiotics are best handled in a
35217. The fixed cost of a distillation column at minimum reflux ratio is
35218. __________ extractor uses centrifugal force for separating the two phases.
35219. In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of
35220. The study of mountains is
35221. Acetic acid will be most economically separated from a dilute solution of acetic acid in water by
35222. Design calculation for multiple component distillation is done by
35223. To get high tray efficiency
35224. The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is
35225. Pick out the wrong statement. Generally for physical adsorption, a gas of
35226. In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in
35227. Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
35228. Inside the distillation column, the
35229. Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in
35230. Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.
35231. Which of the following is not a continuous drier ?
35232. Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is
35233. __________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.
35234. Rate of leaching increases with increasing
35235. An azeotropic mixture is a __________ mixture.
35236. Who is the leader of Patel Strike in Gujarat?
35237. Molecular seives are regenerated by heating to __________ °C.
35238. In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as
35239. In a counter-current extractor, as the axial mixing increases, the extraction efficiency
35240. Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.
35241. In extractive distillation, solvent is
35242. Radioactive nuclear waste is treated in
35243. Large scale drying of sugar is done in a __________ dryer.
35244. __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.
35245. The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )
35246. __________ equation applies to diffusivities in liquids.
35247. A packed tower compared to a plate tower for a particular mass transfer operation
35248. Which of the following is the most commonly used leaching solvent in vegetable oil industry ?
35249. In an absorber, HETP does not vary with the
35250. Large quantity of silica gel is normally dried in a __________ dryer.
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