Description : What is the speed of light in glycerin (n = 1.47) expressed in terms of the speed of light in a vacuum? A. 2.04c B. 1.47c C. 0.680c D. 1.00c
Last Answer : C. 0.680c
Description : With regard to DNA molecules: a. they contain adenine, cytosine, guanine and uracil bases b. they can be detected with Western blotting c. they can be detected with Southern blotting d. they are denatured at temperature of 1000C
Last Answer : they can be detected with Southern blotting
Description : Steam at 1000C causes more severe burns than water at 100° C because (1) steam has no specific heat capacity (2) steam has latent heat of vaporisation (3) water has no specific heat capacity (4) water has latent heat of fusion
Last Answer : steam has latent heat of vaporisation
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 : What is the melting point of ice or at what temperature does ice melt into water ?
Last Answer : : The melting point of Berber becomes ice water at a temperature of 0 সেল C or 0 সেল C.
Last Answer : Ice Melting point 0 ° C
Description : How many degrees are there between the melting point of ice and boiling point of water?
Last Answer : On the centigrade scale there is 100.On the fahrenheit scale there is 180.
Description : The melting point of ice is ____ K.
Last Answer : 273.16
Description : Melting point of ice _______. (1) increases with increase of pressure (2) decreases with increase of pressure (3) is independent of pressure (4) None of these
Last Answer : (2) decreases with increase of pressure Explanation: The melting point of ice at 1 atmosphere of pressure is very close to 0 °C (32 °F, 273.15 K); this is also known as the ice point.
Description : At hill stations, the boiling point of water will be – (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice
Last Answer : (2) less than that at sea level Explanation: The boiling point is the temperature at which the vapour pressure of the liquid equals the environmental pressure surrounding the liquid. Atmospheric pressure ... The atmospheric pressure at high altitudes like hill station is less than at the sea level.
Description : When pressure is increased the melting point of ice – (1) increases (2) does not change (3) decreases (4) depends on the impurities in the ice
Last Answer : (3) decreases Explanation: In this case. if we increase the pressure on the ice the ice-water system wants to try to lower it again. It can do that by making itself fit into a ... the melting point of ice decreases because of the inversal relationship between the pressure and melting point of ice.
Description : Which of the following decreases with increase in pressure? (A) Melting point of ice (B) Melting point of wax (C) Boiling point of liquids (D) None of these
Last Answer : (A) Melting point of ice
Description : A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point ... C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)
Last Answer : (B) Due to the high pressure at the base, its melting point reduces
Description : Which of the following does not have a sharp melting point? (A) Thoria (B) Glass (C) Ice (D) Pig iron
Last Answer : (B) Glass
Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator
Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE
Description : At hill stations, the boiling point of water will be (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice
Last Answer : less than that at sea level
Description : When pressure is increased the melting point of ice (1) increases (2) does not change (3) decreases (4) depends on the impurities in the ice
Last Answer : decreases
Description : How likely is it that the melting ice caps on earth contain ancient viruses?
Last Answer : It’s a small worry, but the melting ice caps mean a lot bigger issues to worry about, things like Manhattan being under water.
Description : Is a propane "ice melt" torch effective for melting ice on a driveway?
Last Answer : No. But..I HAVE hooked up the garden hose to the hot water outlet in the garage that my washing machine hooks up to, and have hosed down icy areas with hot water to melt the ice. ;-)
Description : Which of these is the most likely result of the polar ice caps melting?
Last Answer : Fishes would be harmed by changes to the ocean water (apex)
Description : What is the latent heat of melting ice ?
Last Answer : The latent heat of melting ice is 60 calories.
Description : What is the relative latent heat of melting ice ?
Last Answer : Relative latent heat of melting ice 336000 jkg ^ -1
Last Answer : The latent heat of melting ice is 60 calories / gram.
Description : For reversible melting of ice at `0^(@)C` and 1 atm. Pressure, the value of `Delta G` will be :-
Last Answer : For reversible melting of ice at `0^(@)C` and 1 atm. Pressure, the value of `Delta G` will be :- A. `lt ... 0` (zero) C. 0 (zero) D. `oo` (infinity)
Description : Is ice melting on a hot plate conduction?
Last Answer : Need answer
Description : Is ice cream melting a chemical change or a physical change?
Last Answer : Melting ice cream is a physical change because it has the ability to go back to it's frozen form and be ice cream again. The chemical identity of it isn't changed.
Description : One ton of the refrigeration is (a) the standard unit used in refrigeration problems (b) the cooling effect produced by melting 1 ton of ice (c) the refrigeration effect to freeze 1 ton of water at ... ice at 0°C in 24 hours (d) the refrigeration effect to produce 1 ton of ice at NTP conditions
Last Answer : Ans: c
Description : One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice (a) in 1 hour (b) in 1 minute (c) in 24 hours (d) in 12 hours
Description : Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise
Last Answer : (A)Global warming
Description : Over-consolidation of soils is caused due to (A) Erosion of over burden (B) Melting of ice sheets after glaciations (C) Permanent rise of water table (D) All the above
Last Answer : Answer: Option D
Description : Melting of ice is an example of an __________ process. (A) Adiabatic (B) Isothermal (C) Isometric (D) None of these
Last Answer : (B) Isothermal
Description : Melting of ice exemplifies a/an (A) Adiabatic process (B) Endothermic reaction (C) Exothermic reaction (D) Process involving a chemical reaction
Last Answer : (B) Endothermic reaction
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 : Pick out the correct statement. (A) Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero (B) Melting of ice involves increase in enthalpy and ... of an ideal gas depends only on its pressure (D) Maximum work is done under reversible conditions
Last Answer : (D) Maximum work is done under reversible conditions
Description : . At the Melting Moments, an ice cream parlour, customers place their orders, watch their ice- cream sundaes being prepared, and then quickly eat the sundaes in the store before the ice cream ... known as A. Inseparability B. Intangibility C. Heterogeneity D. Perishability E. Dependency
Last Answer : D. Perishability
Description : Ice glacier’s melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in (1) Greenland (2) Antarctica (3) Himalayas (4) Arctic
Last Answer : Antarctica
Description : Covalent network crystals have-------? A. higher melting point then molecular crystals (Answer) B. lower melting point then molecular crystals C. discrete molecules linked by Van der waals forces D. hydrogen bonding
Last Answer : A. higher melting point then molecular crystals (Answer)
Description : Water vapour beyond the dew point result in-----? A. Precipitation B. Hailstorm C. Condensation (Answer) D. Formation of ice
Last Answer : C. Condensation (Answer)
Description : The filament of an electric lamp becomes white hot but the lead-in wires holding the filament are only slightly heated because they (a) have smaller current passing through them (b) have very low resistance (c) have higher melting point (d) are made of black iron
Last Answer : Ans:(b)
Description : The material used for a fuse wire should have (a) high resistivity (b) high ductility (c) high melting point (d) low melting point
Last Answer : Ans:(d)
Description : Metals are good conductors of electricity because (a) The contain free electrons (b) The atoms are lightly packed (c) They have high melting point (d) All of the above
Description : The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) boiling point (b) melting point (c) triple point (d) freezing point
Last Answer : Ans:(c)
Description : Which of the following characteristics is not typical of ionically bonded crystals? (a) Has no sharp melting point (b) Cleave into definite cleavage planes (c) Conducts when melted (d) Shatters when crystal is distorted
Last Answer : Ans:(a)
Description : The melting point of copper is (a) 1083°C (b) 732°C (c) 327°C (d) 1835°C
Description : The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) Boiling point (b) Melting point (c) Triple point (d) Freezing point
Description : Alloy having low melting point?
Last Answer : Solder
Description : Melting point of gold?
Last Answer : 10640C (19470F)
Description : The metal with lowest melting point (-39'C)?
Last Answer : Mercury
Description : Melting point of Iron?
Last Answer : 1811K