The energy required to melt one mole of a solid at its melting point is called one of the following. w) the molar heat of fusion x) the molar hear of vaporization y) the molar heat of capacity z) the melting point

The energy required to melt one mole of a solid at its melting point is called one of the following. w) the molar heat of fusion x) the molar hear of vaporization y) the molar heat of capacity z) the melting point
by

1 Answer

Answer :

ANSWER: W -- THE MOLAR HEAT OF FUSION
by

Related questions

The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Description : The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Last Answer : ANSWER: X -- HEAT OF VAPORIZATION

Which of the following molecules would have the smallest molar enthalpy of vaporization? w) Water x) Formaldehyde y) Methane z) Ammonia

Description : Which of the following molecules would have the smallest molar enthalpy of vaporization? w) Water x) Formaldehyde y) Methane z) Ammonia

Last Answer : ANSWER: Y -- METHANE

What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Description : What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Last Answer : Specific heat

Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat capacity increases from Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases

Description : Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat ... Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases 

Last Answer : ANSWER: Z -- HEAT CAPACITY IS THE SAME FOR ALL NOBLE GASES 

Steam at 100°C causes more severe burns than water at 100° C because – (1) steam has no specific heat capacity (2) steam has latent heat of vaporization (3) water has no specific heat capacity (4) water has latent heat of fusion

Description : Steam at 100°C causes more severe burns than water at 100° C because – (1) steam has no specific heat capacity (2) steam has latent heat of vaporization (3) water has no specific heat capacity (4) water has latent heat of fusion

Last Answer : (2) steam has latent heat of vaporization Explanation: It is because steam releases its latent heat as it condenses, which is substantial. The heat of vaporization of steam is over 2000 J per gram. And when it releases that it's then 100 degree water, the same as boiling water.

The snow on the mountains does NOT melt all at once when it is heated by the sum because: (1) It becomes very hard (2) It reflects most of the heat from the sum (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Description : The snow on the mountains does NOT melt all at once when it is heated by the sum because: (1) It becomes very hard (2) It reflects most of the heat from the sum (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Last Answer : (2) It reflects most of the heat from the sum Explanation: Newly formed snow reflects about 90 per cent of the sunlight that falls upon it. This means that the sun is powerless to melt clean snow. And when ... on a spring day because of the sun's heat. It melts because of the warm air from the sea.

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

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

What refers to the amount of energy absorbed or released during a phase-change process?  A. Molar heat  B. Latent heat  C. Vaporization heat  D. Condensation heat

Description : What refers to the amount of energy absorbed or released during a phase-change process?  A. Molar heat  B. Latent heat  C. Vaporization heat  D. Condensation heat

Last Answer : Latent heat

The process of a solid converting directly into a gas is called: w) fusion x) sublimation y) condensation z) distillation

Description : The process of a solid converting directly into a gas is called: w) fusion x) sublimation y) condensation z) distillation

Last Answer : ANSWER: X -- SUBLIMATION 

The snow on the mountains does not melt all at once when it is heated by the sun because _____ A. It becomes very hard It B. It reflects most of the heat from the sun C. It has a low specific heat capacity D. It has a high latent heat of fusion

Description : The snow on the mountains does not melt all at once when it is heated by the sun because _____ A. It becomes very hard It B. It reflects most of the heat from the sun C. It has a low specific heat capacity D. It has a high latent heat of fusion

Last Answer : ANSWER: B

The snow on the mountains does NOT melt all at once when it is heated by the sum because: (1) It becomes very hard (2) It reflects most of the heat from the sum (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Description : The snow on the mountains does NOT melt all at once when it is heated by the sum because: (1) It becomes very hard (2) It reflects most of the heat from the sum (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Last Answer : (2) It reflects most of the heat from the sum Explanation: Newly formed snow reflects about 90 per cent of the sunlight that falls upon it. This means that the sun is powerless to melt clean snow. And when ... on a spring day because of the sun's heat. It melts because of the warm air from the sea.

The snow on the mountains does NOT melt all at once when it is heated by the sun because: (1) it becomes very hard (2) it reflects most of the heat from the sun (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Description : The snow on the mountains does NOT melt all at once when it is heated by the sun because: (1) it becomes very hard (2) it reflects most of the heat from the sun (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Last Answer : it reflects most of the heat from the sun

The heat absorbed by a unit mass of a material at its holding point in order to convert the material into a gas at the same temperature.  a. Latent Heat of Sublimation  b. Latent Heat of Vaporization  c. Latent Heat of Fusion  d. Latent Heat Of Condensation

Description : The heat absorbed by a unit mass of a material at its holding point in order to convert the material into a gas at the same temperature.  a. Latent Heat of Sublimation  b. Latent Heat of Vaporization  c. Latent Heat of Fusion  d. Latent Heat Of Condensation

Last Answer : Latent Heat of Vaporization

What is the amount of heat needed to turn 1 kg of the substance at its melting point from the solid to liquid state?  A. Heat of fusion  B. Heat of vaporation  C. Heat of condensation  D. Heat of fission

Description : What is the amount of heat needed to turn 1 kg of the substance at its melting point from the solid to liquid state?  A. Heat of fusion  B. Heat of vaporation  C. Heat of condensation  D. Heat of fission

Last Answer : Heat of fusion

A cobalt chloride solution soaked into a piece of cotton can be used as an indicator for changes in humidity levels. Pink indicates a high-humidity environment and blue a low-humidity environment. What are these color changes caused by: w) The ionization and reduction of the cobalt plus two slash cobalt plus three couple. x) The vaporization and redeposition of cobalt chloride. y) The loss and readsorption of the cobalt's waters of hydration. z) This is an illustration of the Schrodinger principle.

Description : A cobalt chloride solution soaked into a piece of cotton can be used as an indicator for changes in humidity levels. Pink indicates a high-humidity environment and blue a low-humidity environment. What ... the cobalt's waters of hydration. z) This is an illustration of the Schrodinger principle.  

Last Answer : ANSWER: Y -- THE LOSS AND READSORPTION OF THE COBALT'S WATERS OF HYDRATION.

The ______ of a substance is the amount of heat that must be added or removed from a unit mass of the substance to change its temperature by one degree.  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Description : The ______ of a substance is the amount of heat that must be added or removed from a unit mass of the substance to change its temperature by one degree.  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Last Answer : Specific heat capacity

Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K (A) 0 (B) ∞ (C) 50 (D) 100

Description : Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K (A) 0 (B) ∞ (C) 50 (D) 100

Last Answer : (B) ∞

What is the heat capacity of one mole of substance?  A. Molecular heat  B. Specific heat  C. Latent heat  D. Molar heat

Description : What is the heat capacity of one mole of substance?  A. Molecular heat  B. Specific heat  C. Latent heat  D. Molar heat

Last Answer : Molar heat

How is the h fusion used to calculate the mass of a solid that 1 kj of energy will melt?

Description : How is the h fusion used to calculate the mass of a solid that 1 kj of energy will melt?

Last Answer : What is the answer ?

As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density

Description : As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density

Last Answer : ANSWER: Y -- NUCLEAR CHARGE

The change of a gas to a liquid is called: w) vaporization x) sublimation y) condensation z) freezing

Description : The change of a gas to a liquid is called: w) vaporization x) sublimation y) condensation z) freezing

Last Answer : ANSWER: Y -- CONDENSATION

If the first ionization energy of magnesium is 176 kilocalories per mole, one would expect the second ionization energy t be approximately: w) 350 kilocalories per mole x) 1,760 kilocalories per mole y) 200 kilocalories per mole z) 20 kilocalories per mole

Description : If the first ionization energy of magnesium is 176 kilocalories per mole, one would expect the second ionization energy t be approximately: w) 350 kilocalories per mole x) 1,760 kilocalories per mole y) 200 kilocalories per mole z) 20 kilocalories per mole

Last Answer : ANSWER: W -- 350 KILOCALORIES PER MOLE 

Which of the following energy technologies is not utilized for power generation today? w) Nuclear Fission x) Solar Ponds y) Geothermal Power z) Nuclear Fusion

Description : Which of the following energy technologies is not utilized for power generation today? w) Nuclear Fission x) Solar Ponds y) Geothermal Power z) Nuclear Fusion

Last Answer : ANSWER: Z -- NUCLEAR FUSION

For a substance, density, solubility and melting point are examples of: w) physical properties x) amorphous properties y) chemical properties z) potential properties

Description : For a substance, density, solubility and melting point are examples of: w) physical properties x) amorphous properties y) chemical properties z) potential properties

Last Answer : ANSWER: W -- PHYSICAL PROPERTIES

Diamond has each of the following properties except: w) extreme hardness x) ability to conduct electricity y) high melting point z) tendency to burn in air

Description : Diamond has each of the following properties except: w) extreme hardness x) ability to conduct electricity y) high melting point z) tendency to burn in air

Last Answer : ANSWER: X -- ABILITY TO CONDUCT ELECTRICITY 

The metallic element with the highest melting point is: w) Ta x) W y) Rh z) Mo

Description : The metallic element with the highest melting point is: w) Ta x) W y) Rh z) Mo

Last Answer : ANSWER: X -- W

Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Description : Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Last Answer : ANSWER: W -- POTASSIUM BROMIDE

Solids may be considered to be either crystalline noncrystalline. The basic difference between them is that a crystal, in contrast to a noncrystal: w) has a sharp melting point x) has an irregular array of atoms y) exhibits double refraction z) has a completely regular atomic or molecular structure

Description : Solids may be considered to be either crystalline noncrystalline. The basic difference between them is that a crystal, in contrast to a noncrystal: w) has a sharp melting point x) has an irregular array of atoms y) exhibits double refraction z) has a completely regular atomic or molecular structure

Last Answer : ANSWER: Z -- HAS A COMPLETELY REGULAR ATOMIC OR MOLECULAR STRUCTURE

Which noble gas has the highest melting point ? w) argon x) krypton y) xenon z) radon

Description : Which noble gas has the highest melting point ? w) argon x) krypton y) xenon z) radon

Last Answer : ANSWER: Z -- RADON

Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z? A) Has high melting point B) Has low melting point C) Conducts electricity in molten state D) Occurs as solid

Description : Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z? A) Has high melting point B) Has low melting point C) Conducts electricity in molten state D) Occurs as solid

Last Answer : B) Has low melting point

Which method, vapor phase oxidation or direct-melt process, transforms deposited material into a solid glass preform by heating the porous material without melting?

Description : Which method, vapor phase oxidation or direct-melt process, transforms deposited material into a solid glass preform by heating the porous material without melting?

Last Answer : Vapor phase oxidation.

The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Description : The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Last Answer : ANSWER: Y -- IONIZATION OR DISSOCIATION 

The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Description : The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Last Answer : ANSWER: W -- CaCl2

Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid

Description : Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid

Last Answer : ANSWER: Z -- 0.1 MOLAR HYDROCHLORIC ACID

A sample of grapefruit juice at 25 degrees Celsius has a hydronium concentration of 1.78 X 10-3 molar. What is the pH of the solution? w) 2.22 x) 2.75 y) 3.25 z) 6.33

Description : A sample of grapefruit juice at 25 degrees Celsius has a hydronium concentration of 1.78 X 10-3 molar. What is the pH of the solution? w) 2.22 x) 2.75 y) 3.25 z) 6.33

Last Answer : ANSWER: X -- 2.75

The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE

What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3

Description : What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3

Last Answer : ANSWER: Y -- 1

2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar

Description : 2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar

Last Answer : ANSWER: X -- 2 MOLAR 

Pure water is approximately what molar concentration: w) .55 Molar x) 5.5 Molar y) 55 Molar z) 550 Molar

Description : Pure water is approximately what molar concentration: w) .55 Molar x) 5.5 Molar y) 55 Molar z) 550 Molar

Last Answer : ANSWER: Y -- 55 MOLAR

Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree? w) Heat of fusion x) Liquification heat y) Internal heat z) Specific heat

Description : Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree? w) Heat of fusion x) Liquification heat y) Internal heat z) Specific heat

Last Answer : ANSWER: Z -- SPECIFIC HEAT

When the front of a glacier is stationary for a long time, the glacier will do which of the following? w) form many crevasses x) melt away y) not erode its bed z) build a large terminal moraine

Description : When the front of a glacier is stationary for a long time, the glacier will do which of the following? w) form many crevasses x) melt away y) not erode its bed z) build a large terminal moraine

Last Answer : ANSWER: Z -- BUILD A LARGE TERMINAL MORAINE

One mole of electrons is known as: w) a Faraday x) a Henry y) a Coulomb z) an Ampere

Description : One mole of electrons is known as: w) a Faraday x) a Henry y) a Coulomb z) an Ampere

Last Answer : ANSWER: W -- A FARADAY

Moles of solute divided by kilograms of solvent is expression for: w) molarity x) solute-to-solution ratio y) mole percentage z) molality

Description : Moles of solute divided by kilograms of solvent is expression for: w) molarity x) solute-to-solution ratio y) mole percentage z) molality

Last Answer : ANSWER: Z -- MOLALITY

The complete combustion of one mole of hydrogen produces: w) 1/2 mole H2O x) 1/2 mole H2O + 1/2 mole O3 y) 1 mole water z) 1 mole hydroxide ions

Description : The complete combustion of one mole of hydrogen produces: w) 1/2 mole H2O x) 1/2 mole H2O + 1/2 mole O3 y) 1 mole water z) 1 mole hydroxide ions

Last Answer : ANSWER: Y -- 1 MOLE WATER

One equivalent of a triprotic acid is the same as: w) one mole of the acid x) one-third mole of the acid y) three moles of the acid z) three equivalents of a diprotic acid

Description : One equivalent of a triprotic acid is the same as: w) one mole of the acid x) one-third mole of the acid y) three moles of the acid z) three equivalents of a diprotic acid

Last Answer : ANSWER: X -- ONE-THIRD MOLE OF THE ACID

What process produces most of the energy that is radiated by the Sun? w) gravitational contraction x) chemical combustion y) nuclear fusion z) nuclear fission

Description : What process produces most of the energy that is radiated by the Sun? w) gravitational contraction x) chemical combustion y) nuclear fusion z) nuclear fission

Last Answer : ANSWER: Y -- NUCLEAR FUSION

What is the difference between water's high heat capacity and high heat of vaporization?

Description : What is the difference between water's high heat capacity and high heat of vaporization?

Last Answer : Water heat of vaporization at 100 oC: 2030 kJ/kg.Water specific heat at 15 oC: 4,187 kJ/kg.K.

A definite amount of an ideal gas `(gamma = 1.5)` undergoes change of state in which heat exchange is equal to work done `(q=w)`. Molar heat capacity

Description : A definite amount of an ideal gas `(gamma = 1.5)` undergoes change of state in which heat exchange is equal to work done `(q=w)`. Molar heat capacity

Last Answer : A definite amount of an ideal gas `(gamma = 1.5)` undergoes change of state in which heat exchange is equal to work ... : A. 2R B. 3R C. R D. `3/2R`

Refractory metals are known for which of the following properties: w) lack of chemical reactivity x) low density y) high melting point z) high thermal conductivity

Description : Refractory metals are known for which of the following properties: w) lack of chemical reactivity x) low density y) high melting point z) high thermal conductivity

Last Answer : ANSWER: Y -- HIGH MELTING POINT

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) Ice readily sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator

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