Description : What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius? (1) All ice will melt (2) All water will become ice (3) No change will happen (4) Only some ice will melt
Last Answer : (3) No change will happen Explanation: Fresh water cooled to zero (0) degree Celsius and subjected to additional loss of heat energy normally will freeze. A mixture of fresh water and ice ... the usual freezing point while remaining liquid. Such cloud droplets are composed of super cooled water.
Description : What is a calorie? w) amount of heat required to raise one gram of water one degree Celsius. x) amount of work required to move one gram of water by one centimeter. y) amount of heat required to melt ice. z) amount of heat required to raise one gram of water one degree Fahrenheit
Last Answer : ANSWER: W -- AMOUNT OF HEAT REQUIRED TO RAISE ONE GRAM OF WATER ONE DEGREE CELSIUS
Description : At what degree Celsius is ice water ?
Last Answer : Ice is water at a temperature of 0 degrees Celsius.
Description : Why does ice coverfed in sawdust ct melt quickly? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat
Last Answer : (3) Sawdust is a bad conductor of heat Explanation: Ice needs to absorb heat energy to melt and become water (called latent heat of fusion). Since saw-dust is a poor conductor of heat, it takes ... required heat energy. This allows ice to remain in solid state for more time when packed in saw dust.
Description : Why does ice covered in sawdust not melt quickly ? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat
Last Answer : Sawdust is a bad conductor of heat
Description : How much mechanical work must be done to completely melt 1 gram of ice at 0°C? (1) 4.2 J (2) 80 J (3) 336 J (4) 2268 J
Last Answer : (2) 80 J Explanation: When water at 0 degree Celsius freezes, each gram of water gives off 80 calories. The temperature of the water stays at 0 degree C until every drop has frozen. When ... heat-80 calories for each gram of ice-and its temperature remains unchanged until it has completely melted.
Description : How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? (1) 4.2 J (2) 80 J (3) 336 J (4) 2268 J
Last Answer : 80 J
Description : What is the velocity of sound in air at zero degree Celsius ?
Last Answer : - 322 ms
Description : Which of the following is standard temperature and pressure (STP)? A. 0 degree Celsius and one atmosphere B. 32 degree Fahrenheit and zero pressure C. 0 degree Kelvin and one atmosphere D. 0 degree Fahrenheit and zero pressure
Last Answer : 0 degree Celsius and one atmosphere
Description : If water is warmed from 0 degrees Celsius to 6 degrees Celsius, which of the following things happen. Will the water: w) expand steadily x) contract steadily y) expand at first and then contract z) contract first then expand
Last Answer : ANSWER: Z -- CONTRACT FIRST THEN EXPAND
Description : Density of water is maximum at (1) 12 degree Celsius (2) 8 degree Celsius (3) 4 degree Celsius (4) 0 degree Celsius
Last Answer : (3) 4 degree Celsius Explanation: Water never has an absolute density because its density varies with temperature. Water has a maximum density at 3.98 degrees Celsius.
Description : A kilogram of water goes from 90 degrees Celsius to 10 degrees Celsius in a period of 2 hours. If the specific heat of water is 4 kilojoules per kilogram per degree Celsius, how much heat has the water lost?
Last Answer : ANSWER: 320 KILOJOULES or 320,000 JOULES
Description : The radiator of a room contains 10 kilogram of water. If the water gives off 50,000 calories of heat to the room, the drop in temperature of the water is: w) 1 degree Celsius x) 2 degrees Celsius y) 5 degrees Celsius z) 10 degrees Celsius
Last Answer : ANSWER: Y -- 5 DEGREES CELSIUS
Description : Ice is slippery when a man walks on it because a.Increase of pressure causes it to melt b.Ice is brittle c.There is no friction d.It is very chill e.Its surface is smooth
Last Answer : a. Increase of pressure causes it to melt
Description : Chemically, dry ice is (a) ice formed from pure distilled water (b) solid carbon dioxide (c) solid sulphur dioxide (d) ice kept at sub-zero temperatures
Last Answer : Ans:(b)
Description : Name the following: (a) A metal, which is preserved in kerosene. (b) A lustrous coloured non-metal. (c) A metal, which can melt while kept on palm. (d) A metal, which is a poor conductor of heat. -Chemistry
Last Answer : a) Sodium is preserved in kerosene. (b) Iodine is lustrous coloured non-metal. (c) Gallium. ‘ (d) Lead.
Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene
Last Answer : (A) Acrylic
Description : What is the range of mercury thermometer? (1) 0 degree Celsius to 350 degree Celsius (2) -10 degree Celsius to 350 degree Celsius (3) -20 degree Celsius to 350 degree Celsius (4) -30 degree Celsius to 350 degree Celsius
Last Answer : (4) -30 degree Celsius to 350 degree Celsius
Description : At zero degrees Celsius and one atmosphere (STP), the volume of a gas is 1,000 milliliters. If the temperature is increased to 25 degrees Celsius and the pressure is doubled, what is the new volume of the gas? w) 546 milliliters x) 500 milliliters y) 1,000 milliliters z) 273 milliliters
Last Answer : ANSWER: W -- 546 MILLILITERS
Description : At what point is the temperature the same on the Celsius and Fahrenheit scales? w) Absolute zero x) Zero y) Negative 40 degrees z) Never
Last Answer : ANSWER: Y -- NEGATIVE 40 DEGREES
Description : Zero degrees Kelvin is equal to what temperature on the Celsius scale?
Last Answer : ANSWER: - 273 DEGREES CELSIUS or -273.15 DEGREES CELSIUS
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.
Description : How much energy would be required to melt 500.g of ice at 0.00 degrees * C to water at 0.00 degrees * C ?
Last Answer : 200
Description : The _________ is defined as the amount of heat required to change the temperature of 1 gram of water by 1 Celsius degree. a. specific heat b. latent heat c. Joule d. calorie
Last Answer : calorie
Description : Does ice melt faster in humid conditions (high relative humidity), or low?
Last Answer : Humid air is denser then dry air. The more air molecules that there are surrounding the ice, the more heat exchange will take place over dry air (given a constant air and surface temperature and over a ... air will draw heat from the ice and cause it to melt more quickly than less dense dry air.
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 : What ice melt will be effective on my driveway at very low temperatures, while doing very little damge to my lawn.
Last Answer : Kitty litter works but it is expensive.
Description : How much calories are required to melt 50 grams of ice at 0 degrees celcius?
Last Answer : Need answer
Description : What can you use to melt ice beside salt?
Last Answer : heat (e.g. infrared radiation, hot air, hot water)antifreeze (e.g. ethylene glycol, propylene glycol, alcohols)sugaretc.
Description : How long does it take to melt an ice cube with table salt in room temperature?
Last Answer : It depends on the size of the ice cube and amount of table salt.
Description : Why does ice melt when its out of the fridge?
Last Answer : The melting point of solid water (ice) is at oC.
Description : What are the differences and purposes of the different types of ice melt such as sodium chloride, potassium chloride, calcium chloride and blends?
Last Answer : Ice Melts are for minimal damage being substained by winter conditions to your lawn.
Description : What chemicals are in ice melt that is safe for pets?
Last Answer : The main thing is what is not in it and that is salt, an example of pet safe ice melt is Safe Paw.
Description : How many joules of heat are necessary to melt 500 g of ice at it's freezing point?
Last Answer : Heat required to melt 1 g of ice at 0°C is approximately 80 cal . This is also called latent heat of fusion of ice.
Description : Why does ice not melt readily when salt is sprinkled over it?
Last Answer : Ans: When salt is sprinkled over ice, some of it dissolves. As dissolution of the salt is accompanied by absorption oh heat. The temperature of the system falls below 0 degree Celsius. Hence, ice does not melt readily.
Description : How to Melt Ice on a Sidewalk
Last Answer : How to Melt Ice on a Sidewalk Having snow freeze up in your sidewalk, garage and porch can lead to some slippery accidents that can seriously injure you. Here are some things you can do to ... the frozen sidewalk. It's also biodegradable, safe for your indoor flooring and not harmful to animals.
Description : A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will - (1) first rise and then fall (2) fall (3) remain the same (4) rise
Last Answer : (3) remain the same Explanation: The submerged portion of the ice on melting shrinks a little in volume. So the level of water goes down a little. But this is just made up by the water added by the melting of upper portion.
Description : If a piece of metal at -20 degrees Celsius is added to an ice and water mixture in equilibrium at 0 degrees Celsius, the amount of ice will: w) Increase x) Remain the same y) Decrease
Last Answer : ANSWER: W -- INCREASE
Description : __________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'. (A) Celsius (B) Rankine (C) Reaumur (D) Fahrenheit
Last Answer : (C) Reaumur
Description : How much energy would be required to raise one liter of water by one degree celsius?
Last Answer : The definition of a calorie is the amount of energy (heat) toraise 1 g of water by 1 degree C. Here you have 1 liter, which is1000 ml, and if you assume a density of 1g/ml, you have 1000 g ofwater. ... as 1 kcal. In joules, it will be 1000calories x 4.184 joules/calorie = 4184 joules = 4.184 kJ.
Description : What is the state of water at 100 degree Celsius 0 degree Celsius 4 degree Celsius?
Last Answer : What is the answer ?
Description : Water boils when: A. Its saturated vapor pressure equals to the atmospheric pressure B. Its vapor pressure equals 76cm of mercury C. Its temperature reaches 212 degree Celsius D. Its vapor pressure is 1 gram per sq. cm
Last Answer : Its saturated vapor pressure equals to the atmospheric pressure
Description : Which of the following best completes the statement: The calorie is the amount of heat needed to raise: w) 1 gram of water 1 degree Celsius x) 1 gram of water 1 degree Rankin y) 1 kilogram of water 1 degree Celsius z) 1 kilogram of water 1 degree Kelvin
Last Answer : ANSWER: W -- 1 GRAM OF WATER 1 DEGREE CELSIUS
Description : If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water
Description : If the temperature on Celsius scale is 0 degree, what will it be on Fahrenheit scale ?
Last Answer : If the temperature on Celsius scale is 0 ° degree it will be 32 Fahrenheit on Fahrenheit scale.
Description : What is one degree Celsius ?
Last Answer : On the Celsius scale, the lower constant is taken to be 0 degrees (00) and the upper constant is to be taken to 100 degrees (1000). The interval is divided into equal one hundred parts. Each part is called one degree Celsius (10C).
Description : What of Venus' has clouds of sulfuric acid and a 500 degree Celsius?
Last Answer : Yes, this is planet Venus.
Description : How much in Celsius is 5 degree es in Fahrenheit?
Last Answer : 5 degree from celsius in Fahrenheit is 415 degree Fahrenheit to celsius is -15
Description : What is degree Celsius in Fahrenheit?
Last Answer : 62ºC = 143.6ºF