how much heat does it take to melt 76.5 g, heat of fusion is 49.0 cal/g heat of vaporization is 1212 cal/g

Q: The mountain point of ice is 0.00°C. Calculate the amount of heat needed to melt 12.754 g of ice at…

A: Concept q=n×ΔH where:q = heat (kJ)n = molesΔH = enthalpy of fusion (kJ/Mol)  or q= m ×ΔH  where  q=…

Q: How much energy does it take to turn 10g of liquid water into a gas at the boiling point? Heat of…

A: Given data : Mass (m) = 10 g Heat of vaporization (ΔHvap ) = 540 cal/g

Q: A certain substance A has a boiling point of 78 degrees celsius and substance B has a billing point…

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Q: How much energy needs to be removed to turn 10g of water vapor into a liquid at the condensation…

A: Answer: amount of energy need to be remove is - 5400 cal or - 22593.6 Joule. (-) Negative sign…

Q: How much heat must be absorbed to warm 25.0g of liquid methanol (C= 2.53 J g/k) from 30° to its…

A: Heat required to rise the temperature of methanol, Q1 = mc∆T , c = 2.53 J/gm.K, m = 25 gm, ∆T =…

Q: The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure -…

A: We have different vapour pressure at different temperatures , we wish to calculate the enthalpy of…

Q: How much heat is needed to melt 75.0 g of ice that is at -28.0ºC?

A: We have given that Mass of ice = m =75 grams T1 = -28°C T2 = 0°C ∆T = T2  - T1 = 0  -  (-28) = 28°C…

Q: How much heat is required to melt 50.0 g of of ice at -5.0°C and heated until it reaches a final…

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Q: 8) If the heat of fusion for water is 80. cal/g, how many calories are needed to melt 45.0 g of ice…

A: The heat of fusion for water is 80 cal/g. It is required to calculate the calories needed to melt 45…

Q: How much heat does it take to melt 34.7g of copper? The heat of fusion  of copper is 49.0 cal/g and…

A: Given: Mass of copper =34.7 g  The heat of fusion of copper= 49.0 cal/g The heat of vaporization is…

Q: 0.38 Calculate the heat released when 32.0 g of steam at 115.0°C condenses and then the water is…

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Q: The heat of vaporization for ethanol is 0.826 kJ/g. Calculate the heat energy in joules required to…

A: given mass of ethanol = 79.95 g heat of vaporization ΔHvap = 0.826 kJ/g

Q: how much heat you need to add to melt a block of 15.0 g of ice at 0 C? the heat of fusion of ice is…

A: Molar heat of fusion or enthalpy of fusion is defined as the amount of heat required to convert one…

Q: How much heat is required to melt 175g of ice at 0℃? Hf = 334 J/g ; Hv = 2260 J/g

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Q: It is observed that 14.4 kcal of energy are released when a 22.8 g sample of an unknown liquid…

A: · Amount of energy released = 14.4 kcal· Mass of unknown liquid sample = 22.8 gWe need to calculate…

Q: The amount of heat needed to raise the temperature of 1 g of a substance by 1 °C is the object's…

A: The amount of heat needed to raise the temperature of 1 g of a substance by 1 °C is the object's is…

Q: Calculate the amount of energy needed to change 10 g of solid mercury at its melting point to…

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Q: If 8000 cal is needed to change the temperature of a certain amount of ice at -25°C to steam at…

A: Specific heat  of the substance of the  heat capacity of a sample of substance is divided by mass of…

Q: How many joules does it take to melt 50 g of ice at O0C. (heat of fusion = 333j/g)

A: The amount of heat required to convert one unit amount of substance from the solid phase to the…

Q: How much heat (in kJ) is required to warm 289.3 grams of ice to steam? The ice starts at an initial…

A: According to Hess law, during the reaction the total heat change is same whether the reaction takes…

Q: 4. Calculate the total amount of heat released as 25.0 g of steam at 130.0 °C is cooled to form ice…

A: Heat released can be calculated using enthalpy of fusion and heat capacities of liquid water and…

Q: How much energy in kilocalories is needed to vaporize 625 g of water? The heat of vaporization of…

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Q: How many calories of heat are required to melt 14 grams of ice at 0 0C?

A: The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol. This…

Q: The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure…

A: Given, Vapor pressure = P1 = 0.0752 atm at temperature = T1 = -84 0C Vapor pressure = P2 = 0.157 atm…

Q: Is energy (or heat) absorbed or released when vaporizing 50.0 g of water?

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Q: How many joules of heat are absorbed then ice is heated from -15.6 °C to-1°C, the specific heat of…

A: Q = 462.966 J

Q: 4. If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -25°C to…

A: Given:∆H =8000calT1 = -25oCT2 = 135oCci = 0.50 cal/goCcs=0.46 cal/goCcw = 1 cal/goCLf =80 cal/gLv=…

Q: Calculate the heat required to increase the temperature of 630 grams of ice from -2°C to 23°C and…

A: A numerical problem based on thermochemistry that is to be accomplished.

Q: Olive oil lowers “bad” (lower density lipids). Olive oil melts at -6.60 0C and boils at 300.00 0C.…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: The heat of vaporization for ethanol is 0.826 kJ/g. Calculate the heat energy in joules required to…

A:

Q: The specific heat of liquid thallium, TI, is 0.13 J/g C. The heat of fusion of thallium is 4.29…

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Q: Water has a latent heat of fusion of 333 kJ/kg and a latent heat of vaporization of 2260 kJ/kg. How…

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Q: E D 40 20 100 80 60 A 40 6 8 10 12 14 16 18 20 22 Time onintes) 2.

A: The question involves  the concepts of heating curve. we have been Shown a heating curve of a…

Q: How much heat (in kJ) is required to warm 64.8 grams of ice to steam? The ice starts at an initial…

A: Given that -  Mass of ice = 64.8 g  Initial temperature of ice = -16.2°C  Final temperature of steam…

Q: Calculate the heat change in joules for melting 12.0 g of ice at 0 ∘C

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Q: Freon-11, CCl3F, has a boiling point of 23.8 degrees celsius. The specific heat of the liquid is…

A: we need to calculate the total heat needed to heat required to convert 10.0 g of CCl3F from a liquid…

Q: The specific heat of liquid thallium, TI, is 0.13 J/g C. The heat of fusion of thallium is 4.29…

A: Given: Mass of thallium = 10.0 g. Initial temperature of solid thallium = 304 oC And final…

Q: How much heat in kJ is required to convert 906 g of ice at-11.0°C to liquid water at 85.0°C? 701…

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Q: How much heat is required to melt a 10.0g ice cube at -15°C?

A: Given: Mass of the ice cube= 10 g Final temperature = -15°C Standard data Specific heat of the…

Q: how much heat is absorbed by 74 g of ice when melted, heat of fusuion of ice is 80.0 cal/g and heat…

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Q: Determine the heat involved when an 80.0 g ice at - 5 °C is converted to steam at 120 °C? Cr of ice…

A: (1.)  Determine the heat required to raise the temperature of the ice from −5 0C to 0 0C : q1 = m ×…

Q: The heat of vaporization for ethanol is 0.826 kJ/g. Calculate the heat energy in joules required to…

A: Given, Heat of Vaporization for Ethanol=0.826 kJ/g Mass of Ethanol=73.75 g The question is about…

Q: the amount of heat required to melt 100-g of ice is greater than to vaporize 100-g of water. True…

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Q: What amount of ethylene glycol (C2H6O2) would vaporize while absorbing 480 kJ of heat? Heat of…

A: Given: Amount of heat absorbed = 480 KJ Heat of vaporization = 60 KJ/mol To find: Amount of ethylene…

Q: The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure…

A: Given By using any two data we can calculate enthalpy of vaporization of X T1 = -88°CT1 = (-88 +…

Q: d. enthalpy of fusion

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Q: How many joules are needed to vaporize 125 g of liquid water at 100°C? The latent heat of…

A: Given, Mass of liquid water = 125 °C Latent heat of vaporization = 2258 J/g Amount of heat (in…

Q: The heat of vaporization for ethanol is 0.826 kJ/g. Calculate the heat energy in joules required to…

A: Given that,  Heat of vaporisation of ethanol ∆Hv = 0.826 KJ/g Mass of ethanol given m = 79.85 g

Q: How much heat is required to convert 20.0 g of ice at -50.0 degrees Celcius to liquid water at 0.0…

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