Equal masses of two substances, A & B, each absorb 25 J of energy. If the temperature of A increases by 4 °C and B increases by 8 °C, one can say that: (a) the specific heat of B is negative. (b) the specific heat of B is triple that of A. (c) the specific heat of A is double that of B. (d) the specific heat of B is double that of A.

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 enthalpy change for the following reaction: (3) FeCl₂(s) + Hg(1)→→→ Fe(s) + HgCl₂(s)…

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Q: Temperature of 150. g of iron increased from 27.1 °C to 33.1 °C after absorbing 406 J of heat, what…

A: Given data,Mass of iron=150gInitial temperature=27.1oCFinal temperature=33.1oCHeat (Q)=406J

Q: Thermal decomposition of 5.0 metric tons of limestone to lime and carbon dioxide absorbs 9.0×106 kJ…

A: Given: Energy=9.0×106 kJ

Q: A 45.61 g sample of a substance is initially at 24.6 °C. After absorbing 2495 J of heat, the…

A: Mass of sample m = 45.61 gramInitial temperature T1 = 24.6 °CFinal temperature T2 = 119.5 °CHeat…

Q: A gold ball with a mass of 138 g has been heated to a temperature of 92.4°C and is then dropped into…

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Q: An aluminum kettle weighs 1.05 kg.(a) What is the heat capacity of the kettle?(b) How much heat is…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: Consider four 100.0 gram samples of water, each is a separate beaker at 25.0°C. Into each beaker you…

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Q: . (a) We place 77.7 g of a metal at 10.00 ◦C in 333.3 g of water at 70.00 ◦C. The water is in a…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: Consider the reaction of 100 mL of 0.22 M HC with 50 mL of 0.22 M Ca(OH)₂. 2HCl (aq) + Ca(OH)₂ (aq)…

A: Molarity of HCl solution= 0.22 M Volume of HCl solution= 100 mL Molarity of Ca(OH)2 solution= 0.22 M…

Q: A generic solid, X, has a molar mass of 78.7 g/mol. In a constant-pressure calorimeter, 21.2 g of X…

A: Given,  Molar mass of solid X = 78.7 g/mole  Mass of X = 21.2 g  Mass of H2O = 299 g  Initial…

Q: 7) When 0.180 mole of sodium nitrate, NaNO, was dissolved in water in a constant-pressure…

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Q: The standard heat of combustion of gaseous cyclopentane, C5H10(g), was measured to be −3319.5…

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Q: When 0.220 g of sodium metal is added to an excess of hydrochloric acid, 2290 J of heat are…

A: Given: 2 Na + 2HCl -----> 2NaCl + H2 when, mass of Na = 0.220g , heat released = 2290J

Q: Titanium tetrachloride, TiCl4, has a melting point of −23.2 °C and has a ΔH fusion = 9.37 kJ/mol.(a)…

A: Given:

Q: The enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride…

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Q: What is the final temperature when a 5.0 g sample of brass initially at 25 oC absorbs 75 J of heat?…

A: Equation for finding the heat absorbed by brass is as follows. Q=mc∆TQ=heat absorbed by brassm=mass…

Q: When 23.6 g of calcium chloride, CaCl, was dissolved in water in a constant-pressure calorimeter,…

A: The mass of calcium chloride is = 23.6 g Increase in the temperature of the calorimeter is =…

Q: A generic solid, X, has a molar mass of 69.9 g/mol. In a constant-pressure calorimeter, 47.9 g of X…

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Q: (b) Calculate the gross calorific value of a coal from the following data: Mass of coal = 0.25 g,…

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Q: A generic solid, X, has a molar mass of 65.9 g/mol. In a constant‑pressure calorimeter, 20.5 g of X…

A: Calorimetry can be used to determine the heat transfer associated with a reaction by measuring the…

Q: A 32.25 g sample of polymer A is initially at 21.4 °C. This substance then absorbs 1,557 J of heat,…

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Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: 0.81 g sample of KCl is added to 37.9 g H2O and stirred until KCl completely dissolves in a…

A: When KCl is mixed with water as we see temperature of the system decreases . Heat of solution is…

Q: When 0.615 g of sodium metal is added to an excess of hydrochloric acid, 6390 J of heat are…

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Q: 1) Glucose, C6H12O6 (MM = 180 g/mol), is converted into ethyl alcohol, C2H5OH(l) in the fermentation…

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Q: 12. An aluminum kettle weighs 1.05 kg.(a) What is the heat capacity of the kettle?(b) How much heat…

A: (a) Given that mass of aluminium kettle =1.05 kg = 1050 g Now, heat capacity is explained as the…

Q: Exactly 46.33 kJ of heat is transferred to a 1.389 kg slab of nickel at a temperature of 12.7°C. (a)…

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Q: dissolution of one mole of NaOH in water releases 44.4 kJ of heat: H(s)→ Na*(aq) + OH*(aq) ΔΗ =…

A: Given: Heat of dissolution of 1 mole of NaOH in water releases 44.4 kJ.Given: Mass of sample of NaOH…

Q: (b) Study the following thermochemical data very carefully: AH° = 242.3 kJ Cl2(g) → 2Cl(g) I2(g)…

A: The formation of compounds from its atoms in their stable sates at standard pressure and temperature…

Q: How many kilojoules of heat

A: D)

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: Please answer these questions on your Page 7 (a) We place 88.8 g of a metal at 10.00°C in 444.4 g of…

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Q: a) A person drinks four glasses of cold water (3.0°C) every day. The volume of each glass…

A: Given: volume=2.6×102 mLInitial temperature=3.0oCFinal temperature=37oC To find: Heat supplied

Q: Many scientists are concerned about the effects of melting icebergs and polar ice on the Earth's…

A: The total amount of heat required (Qrequired) to melt the ice to water at 0.0oC is determined as…

Q: A 1.110-g sample of benzoic acid (HC7H5O2; molar mass = 122.12 g/mol) is burned in an excess of…

A: This problem can be solved by using the equation :                             q=mc∆Twhere q is the…

Q: Two baking sheets are made of different metals. You purchase both and bake a dozen cookies on each…

A: (a) Specific heat capacity of a metal is the amount of heat required to raise the temperature of 1 g…

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: When 0.670 g of sodium metal is added to an excess of hydrochloric acid, 6970 J of heat are…

A: moles= mass/molar mass 2 Na(s) + 2 HCl(aq)-----> 2 NaCl(aq) + H2(g)                  Or  Na(s) +…