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

Q: Mercury was once used in thermometers and barometers. When 69.7 J of heat are absorbed by 100.0 g of…

A: Given, Heat absorbed Q = 69.7 J change in temperature ΔT = 29.98 - 25 = 4.98 ℃ Mass m = 100 g

Q: Calculate the amount of heat required to raise the temperature of a 68 gg sample of water from 39C…

A: The considered sample of water is to be heated and the required temperature raise by heating, is…

Q: Express the quantity in the unit indicated and designate whether this heat is gained or lost by the…

A:

Q: Calculate

A: Water is not heated upto 100°C so it is not boiled. So that, specific heat capacity of water is…

Q: How much heat did a cold water sample absorb if 53.88ml of water initially at 22.2 celcius to 32.5…

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Q: A piece of silver of mass 362g has a heat capacity of 85.7 J/degrees Celsius. What is the specific…

A: Specific heat capacity is defined as the amount of heat required to change the temperature of 1 gram…

Q: Calculate the joules of heat required to raise the temperature of 34 g copper bowl from 20 oC to 45…

A: The mass of copper is = 34 g The increase in the temperature is = 45oC-20oC = 25oC The heat…

Q: An iron bar of mass 869 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by the…

A: Q = m . s . ∆T

Q: A 25.0-mL sample of benzene at 20.4 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

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Q: A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its temperature…

A: In this question, we want to determine the specific heat of the unknown substance.  You can see…

Q: How much heat must be applied to a 40.2g sample of gold (s=0.129 J(g∙℃)) in order to raise its…

A: Given information:Mass of gold = 40.2 gInitial temperature = 28.2 ˚CFinal temperature = 351.5…

Q: Calculate the amount of heat required to raise the temperatureof a 65-g sample of water from 32oC to…

A: The heat Q required to raise the temperature is,

Q: In the lab, an experimenter mixes 75.0 g of water (initially at 30 o C) with 83.8 g of a solid metal…

A: To determine the specific heat capacity of any particular metallic substance, calculate the energy…

Q: A 47.0-g sample of copper at 99.9 °C is dropped into a beaker containing 157 g of water at 19.0 °C.…

A: Heat gained or lost by any substance is calculated as: q = m.C.∆T where m is the mass of the…

Q: The specific heat capacities of Cu, Fe, and Ag are 0.385 J/g°C, 0.449 J/g°C, and 0.235 J/g°C,…

A: Temperature is inversely proportional to specific heat capacity of metal

Q: A 43.5-g sample of copper at 99.9 °C is dropped into a beaker containing 156 g of water at 18.7 °C.…

A: Given: Mass of copper = 43.5g Mass of water = 156g Initial temperature of copper = 99.9°C = 99.9 +…

Q: How many kilojoules (kJ) of heat are needed to raise the temperature of a 50.0 g piece of silver…

A: Given, The amount of heat in KJ, are needed to raise the temperature of a 50.0 g piece of silver…

Q: How much heat is required to raise the temperature of 125 grams of water by 10.0 degrees C?

A: Answer The quantity of heat required to raise the temperature of 125 g of water by 10.0°C is 5230 J.…

Q: What is the sensible h

A: by addition of heat to a object its temperature rises, the increase in heat is called "sensible…

Q: How much would the temperature of a 61.9 gram sample of grain alcohol increase if it absorbs 305…

A: Given the mass of alcohol is 6.19 grams heat energy Q=305 Joules Suppose the alcohol is ethanol ( As…

Q: A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from…

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Q: Determine the total heat evolved in Joules in a solution of 19 mL of NAOH and 19 mL of HCI…

A: Given, Volume of NaOH = 19 mL Volume of HCl = 19 mL Initial temperature, Ti=26.8°C Final…

Q: Consider the dissolution of ammonium nitrate according to the following equation: NH,NO3(s) → NH,…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: What is the specific heat of lead if it takes 98.0 J to raise the temperature of a 75.4 g block by…

A: Given :- heat absorb = 98.0 J  mass of lead block = 75.4 g  change in temperature of block = 10.5°C…

Q: )How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45g silver…

A: Specific heat capacity is defined as the amount of heat required to raise the temperature of 1…

Q: How many joules of heat must be removed from 432g of water. (heat capacity of 4.184j / g celsuis) to…

A: Joules of heat can be calculated by using following formula,The equation for heat is  Q=m(Δt)Cp

Q: Determine the total heat evolved in Joules in a solution of 20 mL of NaOH and 19 mL of HCI…

A: Given: Volume of NaOH solution added = 20 mL  Volume of HCl solution added = 19 mL Initial…

Q: What is the specific heat of a 74.01g piece of an unkown metal that exhibits a 45.2 Celcius…

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Q: 11. A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its…

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Q: What is the specific heat of aluminum if it takes 161 cal to raise the temperature of a 75 g…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

A: According to first law of thermodynamics, ∆U = ∆Q - ∆W

Q: How much heat is required to raise the temperature of 1.5 x 103 g of water from 45F to 130.F? The…

A: The temperature conversation formula is

Q: 1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases…

A: Here we have to determine specific heat of  mercury if 13 g of Hg absorbed 145.6 J heat energy so…

Q: With this information and the specific heat of water, 4.184 J/(g·°C), calculate the specific heat,…

A: Given,  The specific heat of gold metal,  when 38.600 g Au metal at 65.17 °C added to 60.00 g of…

Q: If 136 J is required to change the temperature of 8.75 g of nickel from 0.0°C to 35.0°C, what is the…

A: Specific heat capacity is amount of heat                      required to raise temperature of given…

Q: How much energy is needed to raise the temperature of 325g of water by 10.0 degrees? The specific…

A: Thermodynamics is branch of chemistry in which we deal with heat of reaction.

Q: A 250.0 g metal bar requires 5.866 kJ to change its temperature from 22 o C to 100.0 o C. What is…

A: The heat required (Q) to raise the temperature of any substance of mass m can be expressed as…

Q: A 90g sample of an unknown metal absorbed 25.6J of heat as its temperature increased 1.18C. What is…

A: The amount of heat required is related to specific heat capacity as,…

Q: If 50.0 g of water change in temperature from 22.5 to 25.4 deg C and the specific heat capacity of…

A: Amount of heat required is given by, q =m.c.∆T where q is the heat required, m is the mass, c is the…

Q: A new substance evolves (-1.64) kJ of heat when 17.15 g it cools from 106.2oC to 23.8oC. What is the…

A: Given :-  Heat (q) = -1.64 kJ  mass of substance = 17.15 g  Initial temperature = 106.2 °C  Final…

Q: If a 42.0g piece of steel at 75.0 degrees C is placed in 150.0 g of water at 25.5 degrees C, what is…

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Q: How much heat is required to raise the temperature of 1,500 g of water from 25C to 52C? The specific…

A: Given  Mass of water ( m )  = 1500 gram  specific heat of water ( s ) = 4.184 Joule/g℃  Initial…

Q: How much energy, in J, is required to raise the temperature of 1 kg of water from 37oC to 39.5oC?…

A: Given, The energy, in J, is required to raise the temperature of 1 kg of water from 37oC to 39.5oC…

Q: How much heat is released by a system when 45 J of work is done on it to decrease its energy to 23…

A: The objective of the question is to calculate the heat released by the system when : Work done (∆W)…

Q: An unknown hot metal at 107.03°C with a mass of 48.67g was mixed with 37.99g of water at an initial…

A: Given data contains, Mass of unknown metal , mm= 48.67 gInitial temperature , Tim= 107.03°CMass of…

Q: A sheet of gold weighing 10.6 g and at a temperature of 15.3°C is placed flat on a sheet of iron…

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Q: Calculate the specific heat of water if 188.3 J is required to raise the temperature of 3.000 g of…

A:

Q: A 1.9 kgkg block of iron at 29 ∘C∘C is rapidly heated by a torch such that 17 kJkJ is transferred to…

A: The change in temperature of a substance is related to the heat supplied to that substance as…

Q: A sample of water of unknown mass undergoes a temperature change from 68.09oC to 72.61oC with a…

A: Given: Energy added = 205.8 J Initial temperature of water = 68.09 oC And final temperature of water…

Q: If 91 J of heat is added to a pure gold coin with a mass of 15 g , what is the temperature change?…

A: