Supposed you want to cool a liter of water (equivalent to 1 kilogram) from room temperature (26°C) to 5°C, how much energy should be removed from the room-temperature water?

Q: 41( When 157.0 grams sample of and alloy at 100.0 Celsius ° is dropped into 100 grams of water at 25…

A: Mass of alloy = M1 = 157.0 g Initial temperature of alloy T1i = 100.0 °C Final temperature Tf = 40.1…

Q: mestion 41 of 41 Suppose a boil water notice is sent out advising all residents in the area to boil…

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Q: 120 grams of ethanol are cooled from 90.0°C to 73.4° C. What is the heat change (in Joules)?…

A: Given data : Mass of ethanol = 120 g Ethanol heat of vaporization  ΔH(vap) = 38.6 kJ/mol = 38600…

Q: Lead has a heat of fusion of 23.140 J/g, along with a specific heat of o.12928 J/(g °C) in its solid…

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Q: Calculate the amount of energy required to heat 357 g of ethylene glycol (antifreeze) from 0°C to…

A: Given, Mass of ethylene glycol (m) = 357 g Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: Specific Heats of Substances Substance Specific Heat (cal/g⋅°C) Brick 0.20 Ethanol 0.58…

A: The concept is based upon specific heat capacity which may be defined as the amount of heat energy…

Q: Calculate the amount of heat needed to boil 80.0g of hexane (C6H14), beginning from a temperature of…

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Q: A piece of copper at room temperature (77◦F) is placed in a pot of boiling water (212◦F). After 10…

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Q: You add 50.0 g of ice initially at ‒20.0 °C to 1.00 x 102 mL warm water at 67.0 °C. When all the ice…

A: Answer: Given that

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Given data : Mass of copper(mc) = 18.9 gms Temperature of copper(Tc) = 99.38°C Mass of water(mw) =…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Calorimeter: A calorimeter is an instrument used for calorimetry, or the process of measuring the…

Q: A sample of water at 15.6 °C required an input of 2.55 × 104 J of heat to reach its boiling point,…

A: We know that  q = m × C × (Tfinal - Tinitial ) Where q = heat input m = mass of reactant, water C =…

Q: Which of the scenarios below can happen if hot coffee is poured into cold water? Explain. The…

A: According to the second law of thermodynamics the heat energy can flow spontaneously from a higher…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Here, we need to calculate the value of specific heat of tin. Specific heat formula is used to…

Q: If a 71.98 kg person ate 178 calories worth of sugar (about the calories in a typical energy drink…

A: Given information: mass of person = 71.98 kg q = 178 calories 1.000 kilocalorie = 4184 Joule, 1 cal…

Q: Calculate the amount of heat required to raise the temperature of an 91g sample of water from 39 ∘C…

A: The heat required to raise the temperature of a substance can be expressed as:

Q: Calculate the amount of heat needed to boil 177. g of octane (C8H₁8), beginning from a temperature…

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Q: How much heat (kJ) is needed to raise the temperature of 50.0 grams of water from 25.0°C to 50.0°C?

A: For solving the question we need to know the term heat capacity .Heat capacity is the heat required…

Q: Warm water derives from mixing 100 cm3 of water at 20°C with 200 cm3 of water at 80°C What is the…

A: Answer:- This question is answered by using the simple concept of calorimetry which states that heat…

Q: When we see that 10 gummy bears are 80 Calories meaning that each bear is 8 Calories, this really…

A: 10 gummy bears = 80 calories.  1 gummy bear = 8 calories. 1 calorie = 4.184 J 1 kJ = 1000 J.