Suppose you place equal amounts of 70.0°C and 20.0°C water next to each other in an insulated box with the two samples separated by a thin piece of metal. Assuming no heat is lost to the surroundings, what is the final temperature of the two samples of water? 25.0°C 55.0°C 45.0°C 20.0°C

Q: A 125 gram piece of metal is heated to 288°C and dropped into 85.0 grams of water at 26.0°C.  If the…

A: We have 125 g of metal of temperature 288°C, 85 g of water at 26°C , both have final temperature as…

Q: Suppose that 1.11 g of rubbing alcohol (C3H8O)evaporates from a 70.0 g aluminum block. Aluminum has…

A: This question requires manipulation of units. At first, calculate the no. of moles of rubbing…

Q: Calculate the change in heat when 22.50  g of water vapor (steam) at 100.0°C condenses to liquid…

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Q: A 155.0 g piece of copper at 146 oC is dropped into 250.0 g of water at 15.3 oC. (The specific heat…

A: The heat lost by copper will be equal to the heat gained by water as there is no loss of heat to the…

Q: Arrange the following in increasing order of acid strength. Rationalize your answer.

A: - I and - R effect increase acid strength. + I and + R effect decreases acid strength.

Q: What is the difference between heat capacity and specific heat? Check all that apply. What is the…

A: According to modern thermodynamics, heat is the system's overall internal energy. Two properties…

Q: A 56.0 g sample of brass is put into a calorimeter (see sketch at right) that contains 100.0 g of…

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Q: A 0.790-g piece of lithium metal is dropped into a mixture of 50.0 g water and 50.0 g ice, both at…

A: The relation of heat energy, mass, heat capacity and change in temperature can be given as…

Q: A 42.7 g sample of a metal is heated to 95.5°C and then placed in a calorimeter containing 120.0 g…

A: Metal and water are in thermal equilbrium  at this condition    Loss of heat by the metal = Gain…

Q: A 35.1 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 173…

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Q: A 150.0-g sample of a metal at 67.0°C is added to 150.0 g of H₂O at 20.0°C. The temperature of the…

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Q: If a 125 g sample of iron is heated to 250.0oC and then placed in 500.0 g of water at 25.0 oC in an…

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Q: A 38.0 g sample of hot copper is carefully placed into an insulated container containing 172 g of…

A: Find the complete solution given below.

Q: You fill the calorimeter with 55.5g of water at 16.5°C, heat the 15.5 g “silver” coin to 100.0°C,…

A: =15.5 × 0.240 ×(100-22) J =291.096 J

Q: By a hot summer day, you want to serve some refreshments to your friends. To each glass, if you pore…

A: Given: Volume of team = 200.0 mL. Initial temperature of tea = 20.0 oC Mass of each ice cube = 10.0…

Q: Calculate amount of heat (in kJ) required to raise the temperature of a 79.0 g of a substance by…

A: The solution is as follows:

Q: Metal Specific Heat (J/goC) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 Refer to the…

A: Metal Specific Heat (J/goC) Calcium 0.647 Iron 0.449 Silver 0.235 Gold…

Q: 10.0 g of cream at 10.1 °C are added to an insulated cup containing 150.0 g of coffee at 76.1 °C.…

A: The objective of this question is to calculate the equilibrium temperature of the coffee when cream…

Q: A student heated 50.00 g of an unknown metal in boiling water and added it to 125.0 g of water at…

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Q: thermometer A 56.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that…

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Q: thermometer A 55.9 g sample of polystyrene is put into a calorimeter (see sketch at right) that…

A: Given: Mass of polystyrene = 55.9 gTi of polystyrene = 92.9 ◦Cc of polystyrene = ?? Mass of water =…

Q: A 127 gg piece of metal is heated to 2.80×102 ∘C∘C and dropped into 83.5 gg of water at 26.0 ∘C∘C.…

A: In case of mixing hot metal with water, the heat lost by metal is equal to the heat gain by the…

Q: Calculate the heat absorbed, in kJ, when 2000. g of water is heated froI 20.0 °C to 99.7°C in an…

A: Heat absorbed by a system cab be calculate by the following formula Q = m×s×[t2-t1] Q = heat…

Q: A 148.9-g sample of a metal at 74.0°C is added to 148.9 g H20 at 14.4°C. The temperature of the…

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Q: thermometer- A 58.7 g sample of quartz is put into a calorimeter (see sketch at right) that contains…

A: Given: The mass of the quartz sample taken (m1) = 58.7 g The mass of water taken (m2) = 200.0 g The…

Q: A 50.5 g sample of glass is put into a calorimeter (see sketch at right) that contains 150.0 g of…

A: Answer: This question is based on the conservation of heat. When two objects are brought in contact…

Q: A 35.0-g sample of water at 25°C is mixed with 45.0 g of water at 88°C. Calculate the final…

A: Calculate for the final temperature of the mixture see step-2 for further Calculation and concept…

Q: A foundry worker places a 5.77 kg sheet of cobalt at a temperature of 15°C on top of a 16.8 kg sheet…

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Q: Calculate the heat required to increase the temperature of 581 grams of water from 22°C to 90°C? The…

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Q: A 49.8 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 173…

A: Given: Mass of metal, mm=49.8 g Temperature change, ∆T=(99.8-T)°C Specific heat, Cm=0.385 J g-1 °C-1…

Q: You order a 16 oz glass of tea (where the mass of water is 474 grams) from a local restaurant. The…

A: The above question validates the use of the concepts of thermodynamics in day-to-day life. Ice gains…

Q: Calculate the specific heat capacity of iron according to

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Q: thermometer A 54.0 g sample of aluminum is put into a calorimeter (see sketch at right) that…

A: Given data of the following experiment--- Aluminum---- m=54.0 g, T1=90.2℃ , T2=30.7 ℃ Cp for Al = ?…

Q: A piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 25.0 mL of…

A: Given,Mass of iron (m1) = 25 gInitial temperature of iron (Ti) = 398 KSpecific heat capacity of iron…

Q: When 27.0 g of an unknown metal initially at 18.4 °C is placed in 70.0 g H2O initially at 79.5 °C,…

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Q: A 56.6 g sample of aluminum is put into a calorimeter (see sketch at right) that contains 250.0 g of…

A: Answer:- This question is answered by using the simple concept of calculation of specific heat…

Q: Determine the final temperature of a gold nugget (mass = 376 g) that starts at 288 K and loses 4.85…

A: Specific Heat Capacity of gold is =0.128 J/gc Initial temperature = T1 = 288K…

Q: A sample of lead is heated and placed in a 151.0 g container of water at 22.0 oC.  The final…

A: The heat released by the sample of lead is equal to the heat required to raise the temperature of…

Q: Equal masses of gold, silver, copper, and aluminum, all starting 20°C, all absorb the same quantity…

A: The objective of the question is to choose the metal sample that will have the greatest final…

Q: The decision of whether to use gas, oil, electricity, or wood to heat your home comes from many…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A piece of iron (mass = 25.0 g) at 368 K is placed in a styrofoam coffee cup containing 25.0 ml of…

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Q: A 52.7 g sample of iron is put into a calorimeter (see sketch at right) that contains 300.0 g of…

A: When sample of iron, which is at higher temperature is put in water, which is at lower temperature ,…