A hot-water bottle contains 725 g of water at 73 °C. If the liquid water cools to body temperature (37 °C), how many kilojoules of heat could be transferred to sore muscles? Express your answer to two significant figures and include the appropriate units.

Q: If 89 J of heat is added to a pure gold coin with a mass of 20 g. what is the temperature change?…

A: Given question of values = -gold coin mass =20gm . Represent of mass = m  -specific heat capacity of…

Q: Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of…

A: The mass of CO2 produced when 5.10 x 102 kJ of energy is produced is calculated as,   393.5 kJ of…

Q: A backpacker wants to carry enough fuel to heat 2.0kg of water from 25 degrees C to 100.0 degrees C.…

A: Given,Mass of water = 2.0kgInitial temperature = 25 degree CelsiusFinal temperature = 100 degree…

Q: A 126 g piece of metal is heated to 2.80x102 °C and dropped into 87.0 g of water at 26.0 °C Part A…

A: Given : Mass of water = 87.0 g Mass of metal = 126 g Initial temperature of water = 26.0 oC Final…

Q: Water (2430 g ) is heated until it just begins to boil. If the water absorbs 5.85×105 J of heat in…

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

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.46 kg sample…

A: The solution is provided below;

Q: Calculate the heat change in joules for condensation of 7.10 g of steam at 100° C. Express your…

A: Given data, For part a) Mass of steam = 7.10g For part b) Mass of water = 49g

Q: An office heater puts out 2010 Btu (British thermal units) of energy in the form of heat per hour.…

A: Given: Amount of energy produced per hour = 2010 Btu/hr .

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 385.0 g sample…

A:

Q: How much energy is necessary to heat 8.0 kg of water from room temperature (20°C) to its boiling…

A: GivenMass of water given = 8kg                                 = 8000gDifference in temperature=…

Q: Before heating 4 qt. saucepan 8 qt. stockpot 24.5 °C Temp. 24.5 °C Temp. After heating for 5 minutes…

A: Water has specific heat constant of 4.184 J per g per oC which means that 4.184 J of energy is…

Q: Water's heat of fusion is 80. cal/g , and its specific heat is 1.0 cal/g⋅∘C .Some velomobile seats…

A: Heat is consumed to convert frozen water to liquid water. The amount of heat consumed is the heat of…

Q: A sample of metal with a mass of 28.5 grams is heated to 95.0, and placed in a calorimeter…

A: Given, For metal: mass of metal (mmetal) = 28.5 g Specific heat capacity of metal (spmetal) = ?…

Q: Suppose that 311 mL of water changes in temperature from 21.54°C to 45.71°C. What is qrxn in joules?…

A:

Q: 125 mLmL of H2OH2O is initially at room temperature (22.0∘C∘C). A chilled steel rod at 2.0∘C∘C is…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample…

A: Given: The mass of the sample = 749.0 mg The initial temperature of the sample = -3.1 oC The final…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 562.0g sample…

A:

Q: A chemical substance has a specific heat of 0.897 J/g-ºC. If an unknown mass of this substance is…

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

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.25 kg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.59 kg sample…

A:

Q: Suppose that 384 mL of water changes in temperature from 63.73°C to 58.19°C. What is qwater in…

A:

Q: A system absorbs 191 kJ of heat and the surroundings do 110 kJ of work on the system. What is the…

A: Given:Heat energy Q = 191 kJ.Work done on the system W = 110 kJ.

Q: A customer orders 200ml of Sumatran coffee at precisely 60.0°C. You then need to add enough milk at…

A: 70.588ml of milk we must add to reach this temperature.

Q: A certain physical process requires 36.00 kilojoules (kJ) of heat.  Convert this quantity to…

A: Given : Energy in KJ = 36.00 KJ

Q: A 489.9 gram sample of aluminum is initially at 25.7 C. It absorbs 38.27 kJ of heat from its…

A:

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: Suppose that 162 mL of water changes in temperature from 68.36°C to 76.34°C. What is qxn in joules?…

A:

Q: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

A: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

Q: What is the specific heat capacity of iron (in J/(g°C)), if 51.5 J is required to raise the…

A: We will calculate specific heat

Q: How much heat, in kJ, does it take to heat a 2 kg block of copper (specific heat capacity = 0.385…

A:

Q: A piece of metal weighing 59.6 g with a specific heat of 0.59 Jg1°C-! at 1197.5 °C is dunked into a…

A: When the hot metal is dunked into the water, the heat is released by the metal and the equal heat is…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 663.0 mg sample…

A: Given Mass = 663 mg = 663 x 10-3 g Heat = 12.8 J T1 = 0°C T2 = 21.4°C

Q: An office heater puts out 2030 Btu (British thermal units) of energy in the form of heat per hour.…

A: 1 day = 24 hours So, 365 days = (24×365) hours = 8760 hours

Q: A backpacker wants to carry enough fuel to heat 2.4kg of water from 25 C to 100.0 C. If the fuel he…

A: Given: Mass of water= 2.4 kg Initial temperature= 25 C Final temperature= 100.0 C

Q: The recipe for Bananas Foster requires 35g of ethanol to be added to the pan. The ethanol starts at…

A: Mass of ethanol = 35 g Initial temperature = 25oC Final temperature = 78o C Specific heat capacity…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 741.0 g sample…

A:

Q: A hot bottle contains 719g of water at 61 Celcius. if the liquid water cools to body temperature (37…

A: With the help of the specific heat capacity of a substance,  mass and temperature change conversion…

Q: How much heat must be absorbed by a 13.0 g sample of water to raise its temperature from 13.0°C to…

A:

Q: If 52 J of heat is added to an aluminum can with a mass of 29.1 g, what is the temperature change?…

A:

Q: A piece of metal weighing 73.10 g was heated to 99.3°C and then put into 30.00 g of water (initially…

A: The given data : The mass of metal = 73.10 g The temperature of metal = 99.3°C The mass of water =…

Q: Calculate the amount of heat required to raise the temperature of 245.0 gg (approximately 1 cup) of…

A: Given data,

Q: A)   An iron nail with a mass of 12 gg absorbs 15 J of heat. If the nail was initially at 30 ∘C,…

A:

Q: If the specific heat of a ceramic cup is 0.583 J/(g °C), how much heat (in J) is required to raise…

A: To calculate heat energy, we have to use the formula : Q = m*s*Δt        ------(1) where, Q is heat…

Q: If 57 J of heat is added to an aluminum can with a mass of 25.0 g, what is the temperature change?…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.61 kg sample…

A: We have to calculate the specific heat.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.45 kg sample…

A: Given,  Mass, m = 1.45 kg = 1450 g  Initial temperature, Ti = 36.3 °C  Final temperature, Tf = 56.3…

Q: Suppose that 880 mL of water changes in temperature from 20.20°C to 31.3°C. What is qwater in kJ?…

A: Interpretation: The heat gained (qwater) by water is to be calculated. Concept Introduction: Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 399.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 251.0 mg sample…

A: m = 251 mg = 0.251 g T1 = -9.6 oC T2 = 6.1 oC  q = 1.77 J C = ? ΔT = T2 - T1 = (6.1 + 273) - (-9.6 +…

Q: If 391.5 Joules of heat are added to 27.96 grams of a liquid, raising the temperature of the liquid…

A: Heat energy released or absorbed can be determined by using the formula:  Q = m×C×∆T  -----(1)…