Description : Common salt is obtained from sea water by the process of (a) sublimation (b) evaporation (c) crystallisation (d) filtration
Last Answer : Ans:(b)
Description : How are evaporation and sublimation the similar?
Last Answer : Feel Free to Answer
Description : When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation
Last Answer : ANSWER: A
Description : Iron filings can be separated from a heterogenous mixture using the technique of (1) Sublimation (2) Magnetization (3) Sedimentation (4) Evaporation
Last Answer : (2) Magnetization Explanation: The method of separation using magnets is used when one of the components is magnetic. So the heterogeneous mixture of iron filings and some other material (such as sulphur ... by using magnets. Similarly, a mixture of sand and iron filings can be separated by magnet.
Description : Water can be separated from alcohol water mixture by – (1) decantation (2) evaporation (3) distillation (4) sublimation
Last Answer : (3) distillation Explanation: Distillation is a method of separating mixtures based on differences in volatilities of components in a boiling liquid mixture. Distillation is a unit operation, or a ... is distilled to separate its components- notably oxygen, nitrogen, and argon- for industrial use.
Description : When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of – (1) evaporation (2) vaporisation (3) diffusion (4) sublimation
Last Answer : (3) diffusion Explanation: Diffusion is one of several transport phenomena that occur in nature. A distinguishing feature of diffusion is that it results in mixing or mass transport without requiring ... are other transport mechanisms that use bulk motion to move particles from One place to another.
Description : Which type of intermolecular forces are effected in each of the following process: (i)Sublimation of iodine. (ii)Evaporation of water.
Last Answer : Ans. (i) Sublimation of iodine : Dispersion forces. (ii)Evaporation of water : Hydrogen bond.
Description : Mechanism of moisture removal in case of freeze drying of food stuff is by (A) Evaporation (B) Sublimation (C) Dehydration (D) Adsorption
Last Answer : (B) Sublimation
Description : The phenomenon occuring during pumping of a liquid solution containing dissolved gases, which may come out of the solution giving rise to gas pockets, is termed as (A) Evaporation (B) Cavitation (C) Sublimation (D) Stripping
Last Answer : (B) Cavitation
Description : In freeze- drying, water is removed from the product by a. Evaporation b. Sublimation c. Transpiration d. None of these
Last Answer : b. Sublimation
Description : The changing of solid directly to vapor without passing through liquid state is called a. Evaporation b. Vaporization c. Sublimation d. Condensation
Last Answer : Sublimation
Description : The specific terms used in phase transitions a. melting b. evaporation c. freezing d. sublimation
Last Answer : evaporation
Description : ____ is when water goes from a solid to a gas without passing through the liquid phase. a. Transfusion c. Evaporation b. Sublimation d. Condensation
Description : Define the terms-1) sublimation ii) evaporation
Last Answer : i) Sublimation: It is the process in which solid gets converted into vapour without formation of liquid and on cooling; the vapours get converted into solids. ii) Evaporation: Evaporation may be defined as free escape of vapours from the surface of the liquid below its boiling point.
Description : Iron filings can be separated from a heterogenous mixture using the technique of : (1) Sublimation (2) Magnetization (3) Sedimentation (4) Evaporation
Last Answer : Magnetization
Description : Water can be separated from alcohol water mixture by (1) decantation (2) evaporation (3) distillation (4) sublimation
Last Answer : distillation
Description : When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : (1) evaporation (2) vaporisation (3) diffusion (4) sublimation
Last Answer : diffusion
Description : Sublimation temperature of dry ice (solid CO2) is __________ °C. (A) -273 (B) 0 (C) -78 (D) 5
Last Answer : (C) -78
Description : The atmospheric temperature during melting of ice/snow (in the atmosphere) (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease; depends on the altitude where snow melts Answer
Last Answer : A) Decreases
Description : The available incoming solar radiation is known as: w) reflection x) insolation y) reradiation z) absorption
Last Answer : ANSWER: X -- INSOLATION
Description : In a refrigerator what produces the cooling? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these
Last Answer : (4) None of these Explanation: Basically, refrigeration system consists of devices that compress and expand refrigerant gas. When refrigerant gas is compressed it expels heat and when it is suddenly ... inside of the fridge is cooled to a temperature below the ambient temperature of the room.
Description : When pressure is applied on the system, ice ↔ water, then (A) Equilibrium cannot be established (B) More ice will be formed (C) More water will be formed (D) Evaporation of water will take place
Last Answer : (C) More water will be formed
Description : Which of the following exemplifies an adiabatic process? (A) Melting of ice (B) Condensation of alcohol vapor (C) Sudden bursting of a cycle tube (D) Evaporation of water
Last Answer : C) Sudden bursting of a cycle tube
Description : In a refrigerator what produces the cooling ? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these
Last Answer : None of these
Description : Liquid hydrocarbons are converted to low molecular weight gaseous hydrocarbons by a process known as (a) hydrogenation (b) reforming (c) cracking (d) reduction
Last Answer : Ans:(c)
Description : Conversion of a substance directly from solid to vapour state is known as (a) Vaporisation (b) Sublimation (c) Decomposition (d) Ionisation
Description : The phenomenon of melting under pressure and freezing again when the pressure is reduced is known as a. sublimation b. condensation c. deposition d. regelation
Last Answer : regelation
Description : What percentage of insolation is received by the earth’s surface? -General Knowledge
Last Answer : The answer is 'Tundra Climate'
Last Answer : Approximately 47% of insolation is absorbed by the Earth's surface.
Description : What has highest insolation?
Last Answer : Need answer
Description : The part of India receives maximum insolation. (a) northern (b) eastern (c) western (d) southern
Last Answer : Ans: (d)
Description : Uneven distribution of insolation on the earth is mainly due to the – (1) spherical shape of the earth (2) distribution of land and water (3) direction of the winds (4) presence of pressure belts
Last Answer : (1) spherical shape of the earth Explanation: Uneven distribution of insolation on the earth is mainly due to the Earth's tilted axis and the nearly spherical shape. The length of time that the ... lead to the unequal distribution of heat on the Earth, creating what is called a heat gradient.
Description : The solar radiation coming to Earth is called – (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation
Last Answer : (2) Insolation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects ... the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
Description : The amount of insolation received at a place on the surface of the earth depends upon: (1) its climate (2) the longitude of the place (3) its latitude (4) the altitude of the place
Last Answer : (3) its latitude Explanation: Insolation is a measure of solar radiation energy received on a given surface area in a given time. It mainly depends on two factors: (1) the angle at which ... controlled by the latitude of the location and time of the year (Physical Geography Strahler & Sirahler).
Description : Which of the following asborbs part of the insolation and preserves earth's radiated heat? (1) Oxygen (2) Nitrogen (3) Water vapour (4) Carbon-dioxide
Last Answer : (3) Water vapour Explanation: The amount of solar energy reaching the Earth is 70 percent. The surface of the Earth absorbs 51 percent of the insolation. Water vapor and dust account for ... directly to outer space). This radiant energy is re-radiated in the atmosphere horizontally and vertically.
Description : Even after sunset, the air near the Earth's surface continue to receive heat due to – (1) Insolation (2) Terrestrial Radiation (3) Conduction (4) Convection
Last Answer : (2) Terrestrial Radiation Explanation: Even after the sunset when the sun goes down, the incoming radiation from the sun stops, but there is still a lot of radiation that has been absorbed ... i.e. terrestrial radiation heats up the atmosphere more than the incoming solar radiation i.e. insolation
Description : Clear nights are colder than cloudy nights because of – (1) conduction (2) condensation (3) radiation (4) insolation
Last Answer : (3) radiation Explanation: Cloudless nights are colder because the nights that have clouds provide a blanket for the earth and trap some of the hot day air where as the cloudless nights ... waves travel through vacuum, or through matter-containing media that are not required for their propagation.
Description : The word ‘Insolation’ means –
Last Answer : Incoming solar radiation
Description : The intensity of insolation depends on which line?
Last Answer : Latitude
Description : Which part of the Earth’s surface receives the highest amount of insolation?
Last Answer : Tropical deserts
Description : At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation? (a) 22 1 2 ° North and South (b) 40° North and South (c) 42 1 2 ° North and South (d) 66° North and South
Last Answer : (b) 40° North and South
Description : In absorption of insolation, the most significant part is played by?
Last Answer : Haze
Description : Which part of the Earth's surface receives the highest amount of insolation? —
Description : It is the deposition of radiant energy as heat into an absorbing body. a. Radiation b. Ionization c. Convection d. Insolation
Last Answer : Insolation
Description : Which of the following factors contribute to formation of photochemical smog? 1. Stable atmosphere 2. NOx 3. Solar insolation 4. CO (a) 1, 2, 3, & 4 (b) 2, 3 & 4 only (c) 1 & 4 only (d) 1, 2 and 3 only
Last Answer : (a) 1, 2, 3, & 4
Description : The net effect of circulation is to move warm air from the and thus moderate the equator-to-pole energy gradient created by . (a) the tropics to the poles; the difference insolation absorbed in ... from the surface up to the tropopause; more heating in the atmosphere than at the surface from GHGs
Last Answer : the tropics to the poles; the latitudinal distribution of absorbed insolation
Description : The energy conversion efficiency of a solar cell does not depend on a) solar energy insolation b) inverter c) area of the solar cell d) maximum power output
Last Answer : b) inverter