If it takes 41000 joules of heat to melt 200 grams solid copper to liquid copper, what is the heat of fusion of copper?

Q: If 7.5 kg of ice at 0 degrees celcius is put into an icebox, how many joules of heat are absorbed…

A: The heat absorbed by the ice to melt into water is given by                          Q= m L…

Q: On a day when the temperature reaches 500 F, what is the temperature in degrees Celsius and in…

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Q: How much heat is absorbed by a 2kg iron skillet over a camp fire as it goes from 25*C to 150*C,…

A: The specific heat of iron is 450 J/kg°C. Write the equation for the heat absorbed. Q=mCTf-T1 Here,…

Q: If 16,000 cal of heat are added to 50 g of water initially had a temperature of 10°C, what is the…

A: Given: Mass m = 50 g Heat added Q = 16000 cal or 6694.4 joule Temperature initially Ti = 10o C To…

Q: A change of 20 degrees Celsius is the same as a change of ________ Kelvin.

A: Given: The change in temperature on Celsius scale is 20oC.

Q: How much heat is necessary to change 585 g of Ice at -7 degrees Celsius to water at 20 degrees…

A: mass = 585 g temperature of ice = -7 C final temperature = 20 C specific heat of ice = 2.108 J/g - C…

Q: A coolant lowers the temperature in a steel engine weighing 16250 N and running at a temperature of…

A: The mass of the steel engine is,

Q: Thirty-two joules of heat is added to a 255gram iron bar How much will the iron bar’s temperature…

A: Amount of Heart added = 32 J Mass of iron bar = 255 g Specific heat of iron bar, C=0.46 J/g o C

Q: The heat of vaporization of water is 2257 Joules/gram or 540 calories/gram. What energy in Joules is…

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Q: After the 1kg block of ice melts, the amount of heat required to raise its temperature to 10 oC is

A: The heat required to raise temperature to 10 degree Celsius is the sum of heat gained for meting ice…

Q: If the specific heat of water is 4186 J/kg C. If 20000 J are added to 2 kg of water at 20oC, what…

A: It is according to the equation, Q = ms(Tf -Ti) Where, Q: Heat added              m: mass…

Q: A 69g block of metal has a specific heat of 1.29J. What will be the temperature of this metal to one…

A: Given :-  mass of block   m  = 69 g = 0.069 kg specific heat C  = 1.29 J heat energy Q = 114 J…

Q: The specific latent heat of fusion for gold is 1.10x10^6 J/kg: How much energy is required to melt…

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Q: How many kilocalories of heat would be needed to melt 20kg of ice at -30 degrees Celsius and…

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Q: 2kg of ice at -10°C is heated until has melted. how much heat energy has been used? Specific heat to…

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Q: If 5 kg of water freezes at 0ᵒ C, how many kilocalories of heat are liberated?

A: Amount of heat release when water freezes is called latent heat of fusion. Latent heat of fusion(L)=…

Q: How much heat in joules is needed to raise the temperature of 5.0 L of water from 0 degrees Celsius…

A: Given data:  Volume of water = 5.0 L = 5.0 × 10-3 m3 Initial temperature (T0) = 0 °C Final…

Q: What is the ratio of specific heat of sand to the specific heat of water?

A: The specific heat of water is very high, and the specific heat of sand is low.

Q: In an electric freezer, 400.0 g of water at 23.0°C is cooled, frozen, and the ice is chilled to…

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Q: How many joules are needed to change the temperature of 1 gram of water by 1°C?

A: Mass of water is 1g Temperature change is 1oC Specific heat capacity of water (s) is 4.2 J/g

Q: If you have 500 g of water at 25 degrees celcius and wish to heat it to 74 degrees Celsius, how much…

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Q: A 18-kg piece of aluminum (which has a specific heat of 900 J/kg.°C) is warmed so that its…

A: Specific heat capacity of a substance is defined as the heat required per unit mass to change the…

Q: The heat of fusion of sodium metal is 2.6 kJ/mol. How much heat (in kilojoules) is required to melt…

A: The heat energy required to melt is calculated by using the formula Q=n∆Hf , where n=Mm is the…

Q: A 250 grams piece of tin at 99 0C is dropped in 100 grams of water at 10 0C. If the final…

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Q: How many joules of heat are needed to raise the temperature of 0.010 kg of aluminum from 22°C to…

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Q: What is the latent heat of fusion of a substance if it takes 4.5 x 10 4 J to melt 750 grams?

A: Given data: Energy energy (E) =4.5 × 104 J Mass (m) = 750 g = 0.750 kg Required: Latent heat of…

Q: A pot with 0.0001m3 of vegetable oil is being heated from 20 degrees Celsius to 100 degrees Celsius.…

A: Calculate the mass of te oil in the pot. Mass of the oil=Density×Volume                      =925…

Q: A piece of steel expands 10 cm when it is heated from 20 to 40 deg C. How much would it expand if it…

A: Let the original length of the piece of steel be l and the coefficient of thermal expansion be α.

Q: Suppose 160 W of heat flows by conduction from blood vessels under the skin to the body's surface…

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Q: If 83g of ice at 0.0deg C is added to 242g of water at 68deg C, what will the temperature of the…

A: Data Given ,  Mass of ice ( mi ) = 83 g  temperature of ice ( ti ) = 0° C Mass of water ( mw ) = 242…

Q: How much heat is required to convert 5.0 kg of ice from a temperature of - 10 0C to water vapor at a…

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Q: If it takes 41000 joules of heat to melt 200 grams solid copper to liquid copper what is the heat of…

A: The expression for the heat of fusion of copper is, Q=mLL=Qm

Q: If 3000 Joules was used to heat up 100 grams of water, how much would the temperature of the water…

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Q: How much heat is released if 4.00kg of steam cools from 150.0°C to 100°C? How much heat is released…

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Q: If 25 kJ is necessary to raise the temperature of a block from 25C to 30C, how much heat is…

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Q: The water equivalent of 5 kg of a substance is 1 kg. By how much will its temperature change if 7550…

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Q: A wooden block has a mass of 0.200 kg, a specific heat of 710 J/(kg.degrees celcius), and is at a…

A: Thermal energy is defined as the energy contained within a system. Energy can be exchanged in the…

Q: t is the specific heat of a metal substance if 135 kJ of heat is needed to raise metal from 18.0°C…

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Q: How much heat is needed to change 10lb of ice at 32°F to steam at 373°K?

A: Heat required to change the temperature T1 to T2 of mass m is,  Q=msT2-T1 Given : Mass, m=10 lb…

Q: If 25 kJ is necessary to raise the temperature of a block from 25ºC to 30ºC , how much heat is…

A: The expression for the required necessary heat,

Q: One gram of ice at 0°C is placed on a container containing 2,000,000 cubic meters of water at 0°C.…

A: Given data: ice's mass m = 1 g  Initial temperature Ti = 0 oC final temperature Tf = 0 oC volume of…

Q: How much heat is required to melt 30kg of ice at 0 degrees celsius to water at 90 degrees celsius?

A: Converting ice at 0oC to water at 90oC is two step process. step 1 - The ice at 0oC is converted is…

Q: How much heat is needed to melt 17 kg of silver that is initially at 18∘C?

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Q: If 2059 J of heat is gained by 57 g of oil that has specific heat capacity of (2.4 J/(g °C),…

A: Heat gained = 2059 Joules  Mass of oil = 57 g  Specific heat capacity of oil = 2.4 J/(g-°C)

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.