To determine the specific heat of an object, a student heats it to 100 ∘C in boiling water. She then places the 68.3 g object in a 159 g aluminum calorimeter containing 102 g of water. The aluminum and water are initially at a temperature of 19.1 ∘C, and are thermally insulated from their surroundings. If the final temperature is 22.7 ∘C, what is the specific heat of the object? Referring to the table, identify the material in the object.   Substance Specific heat, J/(kg⋅K)J/(kg⋅K) Water 4186 Beryllium 1820 Aluminum 900 Glass 837 Silicon 703 Iron (steel) 448 Copper 387 Silver 234 Gold 129 Lead 128

Q: An unknown substance has a mass of 0.125 kg and an initial temperature of 91.5°C. The substance is…

A: The given values are, mu=0.125 kgTi,u=91.5° Cmw=0.285 kgTi,w,Al=27.5° CmAl=0.150 kgTf=32.0° C

Q: An insulated Thermos contains 150 cm3 of hot coffee at 82.0°C. You put in a 15.0 g ice cube at its…

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Q: A 37 g sample of copper is at 22°C. If 821 J of energy are added to the copper, what is its final…

A: Given The mass of the copper is m = 37 g = 37 x 10-3 kg. The initial temperature is Ti = 22°C.  The…

Q: An unknown substance has a mass of 0.125 kg and an initial temperature of 94.5°C. The substance is…

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Q: Two pieces of metal (A and B) are in contact with each other and initially at different…

A: Given, Temperature, mass of two metal A & B mA=7.5 g, mB=12.25g TA=23°C, TB=53°C Specific heat…

Q: An insulated Thermos contains 170 cm³ of hot coffee at 83.0°C. You put in a 16.0 g ice cube at its…

A: Specific heat of water= 4186 J/kg.K

Q: A perfectly insulated calorimeter has the following parts placed inside of it: 0.250 kg of water at…

A: The given values are,

Q: You are put on a wool sweater of approximately 1.5 kg, because it is around 30 °F  outside. The wool…

A: Given, The mass of the wool sweater (m) =1.5 kg. The initial temperature of the wool sweater T1…

Q: An insulated Thermos contains 150 cm of hot coffee at 88.0°C. You put in a 15.0 g ice cube at its…

A: Let T be the final equilibrium temperature.   Mass of coffee = volume x density = 160 x 1.00 = 160 g…

Q: Rina is a physics student that enjoys hot tea. She wants to determine how much ice is needed to cool…

A: mass of tea (m)= 0.21 kg final temperature of tea (T) = 57.8oCInitial temperature of tea (T') =…

Q: A stainless-steel-bottomed kettle, its bottom 28 cm in diameter and 2.2 mm thick, sits on a burner.…

A: Write the given values with the suitable variables. d=28 cm=0.28 mt=2.2 mm=2.2×10-3 mQ˙=900 Wk=14…

Q: An unknown substance has a mass of 0.125 kg and an initial temperature of 92.0°C. The substance is…

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Q: a) If the final equilibrium temperature of the lead pellets and water is 23°C, how many whole…

A: Principle of Calorimetry When two bodies of different temperatures are brought in thermal contact,…

Q: A 5.75-g lead bullet moving at 410 m/s penetrates a wood block and comes to rest inside the block.…

A: Mass of bullet is M = 5.75 g = 5.75×10-3 kg Initial speed of bullet is u = 410 m/s  Specific heat of…

Q: An insulated Thermos contains 190 cm3 of hot coffee at 93.0°C. You put in a 13.0 g ice cube at its…

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Q: An insulated Thermos contains 140 cm³ of hot coffee at 94.0°C. You put in a 11.0 g ice cube at its…

A: The solution for this question has been given below..

Q: A farrier makes horseshoes and is a specialist in equine hoof care. In making a horseshoe a farrier…

A: Given that the value of temperature of of given two object and mass of two objects and  also given…

Q: Water’s specific heat is 4.186 J/g·°C. A silicone fluid’s specific heat is 3.754 J/g·°C. Two 50 g…

A: Given data: Specific heat capacity of water (cw) = 4.186 J/g·°C Specific heat capacity of silicone…

Q: 8. A 0.26 kg sample of an alloy is heated to 450°C. It is then placed in 0.52 kg of water that is at…

A: Mass of alloy , ma = 0.26 kgMass of water , mw = 0.52 kgmass of aluminum in aluminum calorimeter ,…

Q: In an experiment, a 125-g sample of an unknown metal is heated to 98.0°C. The metal is then placed…

A: The mass of an unknown sample is, m1=125 g The temperature difference of an unknown metal is,…

Q: At a chemical plant where you are an engineer, a tank contains an unknown liquid. You must determine…

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Q: An insulated Thermos contains 150 cm³ of hot coffee at 90.0°C. You put in a 11.0 g ice cube at its…

A:

Q: A 0.075-kg ice cube at -30.0°C is placed in 0.375 kg of 35.0°C water in a very well-insulated…

A: mass of ice cube = 0.075 kg initial temperature of ice cube = -30oC mass of water = 0.375 kg initial…

Q: You have 975 grams of liquid water in a 275 gram glass container. Initially, the water and the…

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Calorimetry

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