How much heat is required to boil away 2.0 kg of liquid helium with a latent heat of vaporization of 20900 J/kg and latent heat of fusion of 5230 J/kg?

Q: An ice cube at 0 degrees C is dropped into a container with 0.5 kg of water at 20° C. The specific…

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Q: A copper rod is 0.705 m long with a rectangular cross section of dimensions 0.0555 m by 0.0755 m.…

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Q: The heat gained or lost by a body during a change of state is the product of its ______ and the…

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Q: You pour 160 g hot coffee at 78.7°C and some cold cream at 7.50°C to a 115-g cup that is initially…

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Q: A block of tin with a mass of 2.00 kg, initially at a temperature of 150.0°C, is in a well-insulated…

A: Mass of block of tin (m) = 2 kg Initial temperature of block of tin = 150oC temperature of water =…

Q: С. 25% D. 0.0075% E. 10% 9. The specific heat of water is 4186 J/kg- C, which is twice higher than…

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Q: A 3.00-g lead bullet at the temperature 30.0°C is fired at a speed of 240 m/s into a large block of…

A: Solution: given that m = 3 g T = 30 degree C V = 240 m/s ice Temp = 0 degree C

Q: A steel section of the Alaskan pipeline had a length of 71.0 m and a temperature of 19.7 °C when it…

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Q: Steam at 250 psia and 700°F steadily enters a nozzle whose inlet area is 0.2 ft2. The mass flow rate…

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Q: Cold water (cp = 4180 J/kg·K) leading to a shower enters a thin-walled double-pipe counter-flow heat…

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Q: Suppose that 0.1 kg of ice at an initial temperature of -10°C are put into 0.40 kg of water at an…

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Q: body cools at the rate of 0.5 C per second when it is above 500 C the surroundings. What is the rate…

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Q: On a certain dry sunny day, a swimming pool's temperature would rise by 1.10°C if not for…

A: Given data: The change in the temperature is ∆T=1.10°C The heat gained by the water is:…

Q: A student doing an experiment pours 0.500 kg of heated metal whose temperature is 98.0 oC into a…

A: Given that a student doing an experiment pours 0.500 kg of heated metal whose temperature is 98.0 oC…

Q: You mix 300 g of hot coffee at 80°C with some amount of cold cream at 10°C. When the coffee and the…

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Q: Two bodies A and B are of same mass and same amount of heat is given to both of them. If the…

A: Given: Two bodies A and B having same mass and same amount of energy.  Definition of Specific Heat.…

Q: An unknown metal weighing 900g at an initial temperature 140oC is placed into an insulated container…

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Q: The temperature of a copper bar rises by 10.0°C when it absorbs 2.03 kJ of energy by heat. The mass…

A: The change in temperature of the copper bar ∆T=10.0°C The heat absorbed by the copper bar Q=2.03…

Q: A 0.045-kg ice cube at -30.0°C is placed in 0.405 kg of 35.0°C water in a very well-insulated…

A: Given data: The mass of ice is m=0.045 kg. The mass of water is M=0.405 kg. The initial temperature…

Q: a copper slug of mass 0.07 in kg is heated in an oven to a temperature of 338.35 in K. the slug is…

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Q: In an experiment, a 0.150 kg insulated aluminum can contains 300 g water at 20 °C. The can and the…

A: Write the given values with the suitable variables. ma=0.150 kgmw=300 g=0.3 kgT1=20 °Cmm=0.10…

Q: A 0.035-kg ice cube at -30.0°C is placed in 0.405 kg of 35.0°C water in a very well-insulated…

A: Let the final temperature be Tf.  Heat required to change temperature △T of a sample of mass m and…

Q: Consider two cooking pots of the same dimensions, each containing the same amount of water at the…

A: The amount of heat energy required to boil away the water in both the pots are the same as the pots…

Q: A cube of ice is taken from the freezer at -5.5 °C and placed in a 95-g aluminum calorimeter filled…

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Q: A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only…

A: Given, m = 3.5kg L = 1mm = 0.001 m R = 7.5cm = 0.075 m t = 2 min = 120 seconds TE is the temperature…

Q: The temperature of a brass bar rises by 10.0°C when it absorbs 2.00 kJ of energy by heat. The mass…

A: Expression for specific heat can be express as-  C=Qm∆T .....(1) Given values -  Q = 2 kJ = 2000 J…

Q: The mode of heat transfer that occurs when a fluid in motion comes into contact with a solid surface…

A: Convection

Q: A 0.5 kg block of hot iron is cooled by 600 oC when placed into a 2 kg bucket of water.  What is the…

A: The heat gained by water must be equal to the heat lost from the iron. It is given by,…

Q: Air (cp = 1.005 kJ/kg·°C) is to be preheated by hot exhaust gases in a cross-flow heat exchanger…

A: a) The rate of heat transfer is ,

Q: In Rusayl cable factory, 150 kg of raw copper is molten to make wires and cables. If 20.1 MJ of heat…

A: The expression for latent heat of fusion is given by Q=mLL=QmL=20.1 MJ150 kgL=0.134 MJkg

Q: he temperature of a silver bar rises by 15° C when it absorbs 1.32kJof energy by heat.The mass of…

A: Given data: Change in temperature is ∆T=15 oC Change in heat is, ∆Q=1.32×103 J Mass of the bar is…

Q: A 0.5 kg ice cube at 0℃ is placed in 1 kg of water at 35℃ in a very well – insulated container with…

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Q: The specific heat of object X is twice that of object Y. Initially equal masses of X and Y are at…

A: The formula of heat is given by  H = m c (T' - T)  where, m is the mass, c is the specific heat and…

Q: small metal bar, whose initial temperature is 25°C is dropped into a large container of boiling…

A: Given initial temperature = 25 0 C

Q: The heat required to melt a block of ice is 1165500 J. Estimate the total heat required to vaporize…

A: Given data: The heat required to melt is Q=1165500 J. The temperature of water is T=50°C.

Q: Suppose you want to raise the temperature of a mass m of ice from T0 < 0 °C to T > 100 °C. In…

A: a) The heat required is given by,

Q: A copper calorimeter of mass 60 g contains 100 g of an unknown liquid at 20℃. A piece of aluminum of…

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Q: A cube of ice is taken from the freezer at -5.5 ∘C and placed in a 85-g aluminum calorimeter filled…

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Q: An aluminum block with a mass of 1.36 kg is cooled in a bucket of . If the aluminum block was 90…

A: Mass of aluminum block (m) = 1.36 kg Initial temperature = 90oC final temperature = 25o C specific…

Q: a 10 kg iron ball is dropped into a pavement from a height of 100 m. If half of the heat generated…

A: Given:- Mass =10 kg  Height h=100 m  specific heat capacity for is 450 J/kgC Half of the heat…

Q: A 2350-kg granite tombstone absorbs 2.8 x 10^7 J of energy from the sun to change its temperature…

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Q: A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only…

A: Here, we have to evaluate the temperature at which the total heat transfered from the coil through…

Q: Calculate the amount of heat needed to change the temperature of 2 kg of steam from 110 0C to -4 0…

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