21. The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °F. After it passes through the radiator it has a temperature of 175 °F. Calculate the amount of heat transferred from the engine to the surroundings by one gallon of water with a specific heat of 4.184 J/g °C.

Q: How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0…

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Q: 2. Thirty-two joules of heat is added to a 255 gram iron bar How much will the iron bar's…

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Q: 12.755 g of a mental initially at 99.0 degrees C are placed into 75.0 g of water initially at 23…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: Apples are versatile fruits used in several baked and cooked dishes. A 10.0-gram apple is placed…

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Q: A work of 657 J is done on a system that releases 434 J of heat. What is the energy change in the…

A: According to first law of thermodynamics, internal energy of the system is equal to the sum of work…

Q: A container filled with 7.81 kg of water underwent a temperature change from 24.19 "C to 28.08 °C.…

A: The amount of heat required to one gram of  substance to raise  the temperature of one degree…

Q: Consider the vaporization of liquid water to steam at a pressure of 1 atm. (a) Is this process…

A: Vaporization is defined as the process in which liquid state is converted into the vapour state. As…

Q: Determine the heat capacity of 20.0 g of water. The specific heat of water is 4.184 J/g °C

A: Given  Mass of water m=20g Specific heat capacity S= 4.184 Jg-1 °C-1

Q: How many joules are required to heat 180g of water from 20c to 35c. The specific heat of water is…

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Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g.°C)…

A: Heat energy is given by q = m * C * ΔT where q = heat energy m = mass of the substance C = specific…

Q: A 167.8 g piece of iron initially at 25.0 Celsius, absorbs 10943 J of energy. What will the final…

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Q: A 55-gram aluminum spoon (specific heat 0.88 J/g°C) at 54°C is placed in 150 mL of coffee at 105°C…

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Q: 1. A 500. g cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat the…

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Q: If two objects, A and B, of different temperature come into direct contact, what is the relationship…

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Q: A 789.0 g of water is placed in a freezer. The temperature of water changes from 30.5 degrees…

A: Given : mass = 789.0 g Initial temperature (T1) = 30.5 degree Celsius Final temperature (T2) = 0…

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A: The total energy required to charge a cell phone is equal to the energy a cell phone battery needs…

Q: A 44.3 g sample of water at 100.00 °C (specific heat of water = 4.184J/g.°C) was placed in an…

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Q: The specific heat of AI is 0.901 J/g C. The specific heat of Iron is 0.449 J/g C. Which substance…

A: The quantity of energy (Q) required can be calculated as follows,

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes…

Q: A 217.3 g water bath is heated to 99.7 ˚C from 22.5 ˚C.  How much heat was absorbed by the water, in…

A: Given, mass of water =217.3 g initial temperature, Ti=22.5 °C final temperature, Tf=99.7°C specific…

Q: If 100 mL of water instead of 50 mL of water was used, how would the final temperature change? How…

A: Specific heat change is the amount of heat required to increase the temperature of 1 gram of…

Q: The mixture of gas and air inside a cylinder reacts, releasing 400 kJ of total energy. If the system…

A: 150 kJ of heat is released from the system

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A:

Q: If 31,500J of heat is used to warm 750g of water, what is the temperature change? The specific heat…

A: According to the law of calorimetry,  Heat absorbed by an object can be written as,  Q = ms∆T Where,…

Q: 4) You are told that a chemical reaction is exothermic. How could you test whether the statement is…

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Q: A 248.5 g water bath is heated to 98.2 ˚C from 22.2 ˚C.  How much heat was absorbed by the water, in…

A: Specific heat and heat of the Substance are interrelated with each other by -   Q = C m ∆T Here, Q =…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: CALCULATION OF SPECIFIC HEAT CAPACITY

Q: A 25.0 g mercury is heated from 25 °C to 155 °C and absorbs 455 J of heat in the process. What is…

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Q: A piece of unknown metal weighs 217 g. When the metal piece absorbs 1.43 kJ of heat, its temperature…

A: Given: Mass of metal, m = 217 g Heat energy, q = 1.43 kJ Initial temperature, T1 = 24.5oC Final…

Q: Water (2750 g ) is heated until it just begins to boil. If the water absorbs 5.55 x 10³J of heat in…

A: The amount of energy absorbed by a substance depends upon the mass of the substance, specific heat…

Q: 1ow. 1. Chemical potential energy is found in the between atoms and is transformed into energy…

A: * For answering o table is not available.

Q: Copper wires used to transport electrical current heat up because of the resistance in the wire. If…

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Q: A beaker of hot water with a volume of 43.9 mL has an initial temperature of 94.3 °C. You place a…

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Q: How much heat is needed to raise the temperature of a 2.5 g piece of copper wire from 20. °C to 80.…

A: When the temperature rise of a 1 g of substance takes place by 1°C, some amount of heat is required…

Q: 27-gram piece of metal at 144  oC is dropped into 86 grams of water at 29 oC.  The water temperature…

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Q: specific heat

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Q: he freezing point of mercury is -38.8°C. What quantity of energy, in joules, is released to the…

A: The density of liquid mercury =13.6 g/cm3. The mass of mercury = 1.00 mL × 13.6 = 13.6 g Hg.

Q: In the laboratory a student determines the specific heat of a metal. He heats 18.4 grams of…

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Q: How much heat is required to raise the temperature of 15 x 10g of water from 45F to 130F? The…

A: Answer: This question is based on the following formula: Q=mS∆There:Q=heat exchangedm=mass of the…

Q: A student heats a 5.0 g sample of an unknown metal to a temperature of 211 °C, and then drops the…

A: Given, Mass of sample metal = 5.0 g Mass of water in calorimeter = 66.0 g The initial temperature of…

Q: A piece of copper alloy with a mass of 85.0g is heated from 30.0°C to 45.0°C. In the process, it…

A: To solve this problem we will use the formula   Q = m • C • ∆T   Where,  Q = heat absorbed  m = mass…

Q: What is heat? How does heat differ from thermal energy? Under what condition is heat transferred…

A: Heat: Heat is a form of energy that is transferred from one body to another because of difference in…

Q: A 23-g sample dissolved in water absorbs heat, increasing its temperature from 30°C to 45 °C. What…

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Q: The density of aluminum is 2.7 g/cm3 and its specific heat is 0.9 J/g.0. A piece of 9.7 cm3 aluminum…

A: Recall the following relation according to law of calorimetry          Q=mC×∆tHere Q is amount of…

Q: A 4.8 sample of water starting 56 C loses 448 J of energy in the form of heat. What is the final…

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Q: Some homes that use baseboard heating use copper tubing. Hot water runs through and heats the copper…

A: Temperature change (ΔT) taking place is given.

Q: How much energy does it take to heat 15.6 grams of aluminum metal from 25°C to 150.°C? The specific…

A: Mass of Aluminum = 15.6 grams Initial Temperature (Ti) = 25°C Final Temperature (Tf) = 150°C…