6.14 Thermal decomposition of 5.0 metric tons of limestone to lime and carbon dioxide absorbs 9.0x10° kJ of heat. Convert this energy to (a) joules; (b) calories; (c) British thermal units.

Q: How much heat (in joules) is used to heat an 80.88-gram sample of iron from 3.59 °C to 100 °C if the…

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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: When 0.963 g of benzene, C6H6, is burned in a bomb calorimeter, the temperature of the calorimeter…

A: The amount of heat was produced by the combustion of the glucose sample is calculated as,

Q: 1. A gas is confined to a cylinder under constant atmospheric pressure. When 0.49 KJ of heat is…

A: Heat Heat is the result of the movement of kinetic energy within a material or an item, or from an…

Q: In the following reaction, how much heat (in kJ) is released when 3.21 moles of CH, are burned? CH,…

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Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: According to the given balanced chemical equation, one mole of nitrogen reacts to produce 92.6 kJ of…

Q: The temperature of 756 g of water in a calorimeterincreases from 23.2°C to 37.6°C. How much heat…

A: Given: Mass = 756g Initial temperature= 23.2oC Final temperature= 37.6oC To find: The heat given off…

Q: How many grams of C,H, liquid must decompose according to the following chemical equation to…

A: Given :-  C6H6(l) ---> 3C2H2(g)  ΔH = 630 kJ To calculate :-  Amount of C6H6 that will be…

Q: Consider a neutralization reaction in which NaOH(aq) is mixed with H2SO4(aq) in a coffee cup…

A: Given is coffee cup calorimeter,  Mass m = 159.0 g ΔT = 7.70 °C   We need to find heat of…

Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with chlorine(g) to…

A:

Q: 4. How much work is done by or on the system (state which), in Kcal, in a reaction if the internal…

A: The solution is given below -

Q: 10. When 318 cal of energy is added to 279g of copper at 14.8°C, the temperature increases to…

A: By using the formula, heat q=mCp∆T where, Cp is the specific heat of the substance. Given that,…

Q: How many kilojoules of heat are absorbed when 40.8 g of MgO(s) is decomposed into Mg(s) and O2(g) at…

A: Decomposition of MgO 2MgO(s) ....> 2Mg(s) + O2(g) heat absorbed (dH) = +1204 KJ  Mass of MgO =…

Q: 6. How much work is needed in a system to expand from 25 to 50 L against a pressure of 7 atm? Is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1.Answer the following and show the working a. If we add 450cal of heat to 37g of ethanol at 20oC,…

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

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

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Q: In a given gaseous reaction, 72 J of heat is absorbed and AE = -442 J. (a) Calculate w (work). work…

A: First law of thermodynamics  When heat absorbed by a system  Q=∆E+W Q=heat absorbed by a system…

Q: 2. How much heat, in joules, is required to raise the temperature of 1.82 Kg of water by 3.32°C?

A: Rise in Temperature (∆T) =3.32 °C  Mass of water (m) = 1.82 kg = 1.82 × 103 g Heat (q) =?

Q: When 1 mole of HCI(g) reacts with NH3(g) to form NH CI(s) according to the following equation, 176…

A: We have to predict nature of reaction and q value.

Q: 4. What is the specific heat of iron, if it requires 1050 J of heat energy to raise the temperature…

A: Heat required = 1050 J Initial temperature = 10.0°C Final temperature= 20.4°C Change in temperature…

Q: 8. When 0.38g of CS2 is burned with excess oxygen in a calorimeter filled with 40g of water…

A: Formula used =  q = mwaterCwaterdT + CCS2 dT Where q = heat of combustion dT = T2-T1

Q: A cylinder contains a mixture of gases under constant atmospheric pressure. The gases undergo a…

A: The thermodynamics is the branch of science which deals with the heat and other forms of energy.…

Q: If a system has 425 kcal of work done to it, and releases 5.00×102 kJ of heat into its surroundings,…

A: Convert the unit of work done to kJ:

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g•°C) that…

A: Given,  specific heat = 0.450 J/g.oC heat = 801 J , mass = ? , ∆T= 120°C - 22.5°C = 97.5°C

Q: When 1 mole of CH4(g) reacts with O2(g) to form CO2(g) and H2O(g) according to the following…

A: Since When 1 mole of CH4(g) reacts with O2(g) to form CO2(g) and H2O(g) according to the equation…

Q: 7. When 0.63 g of solid LiCI (AHsoln = – 37.1 kJ/mol) dissolves in 5 L of water, how much heat is…

A: Answer :-  Heat released (q) when 0.63 g LiCl dissolved in 5 L water = -552.8 (J) = -0.5528 (kJ)…

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g･°C) that…

A: Q = heat =801 J ΔT = change in temperature = (120 - 22.5) = 97.5 oC c = Specific heat = 0.45 J/goC…

Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…

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Q: OWhen a 0.740-g sample of trinitrotoluene (TNT), CH-N,Oo, is bumed in a bomb calorimeter, the…

A: Given volume of water = 675mL  Density of water = 1g/mL  So, mass of water = volume×density = 675g…

Q: When 10 g of citric acid was burned in a calorimeter containing 1500 g of water, a temperature rise…

A: Step 1: We know that,

Q: The value of ΔH° for the reaction below is 128.1 kJ CH3OH (l) --> CO (g) + 2H2 (g)  How may kJ of…

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Q: A gas sample does 214 J of work upon expanding and the cools, losing 34 J of heat. What is the total…

A: The first law of thermodynamics is given asΔU=Q−W, Δ U = Q − W , whereΔU is the change in internal…

Q: The average propane cylinder for a residential grill holds approximately 18 kg of propane. How much…

A:

Q: If a system has 225 kcal of work done to it, and releases 5.00 x 102 kJ of heat into its…

A: Given,  A system has 225 KCal of work done to it and it releases 5.00×102 KJ of heat the internal…

Q: How many joules of heat are evolved by a reaction in a calorimeter where the temperature of the bomb…

A: We know that,  Heat = m x c x ∆T  Where, m = mass  c = specific heat  ∆T = change in temperature

Q: If a system has 375 kcal of work done to it, and releases 5.00 x 10² kJ of heat into its…

A:

Q: & How much work is done by or on the system (state which), in kcal, in a reaction if the internal…

A: Given: Mass of water = 185 g. Initial temperature of water = 20.0 oC Final temperature of water =…

Q: If 901 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g･°C) that…

A: The amount of heat available is = 901 J The specific heat of iron is = 0.450 J/g.oC The rise in…

Q: The following thermochemical equation is for the reaction of hydrogen chloride(g) with ammonia(g) to…

A: One mole of HCl reacts with one mole of ammonia to form one mole of ammonium chloride. In this…

Q: A system receives 575 J of heat and delivers 425 J of work. Calculate the change in the internal…

A: Given data  The system absorption heat energy= 575 J  The work done by the system = 425 J  Internal…

Q: If 901 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g･°C) that…

A: Given data: Heat = 901 J Specific heat = 0.45 J/g.℃ Initial temperature = 22.5 ℃ Final temperature =…

Q: The air in an inflated balloon (the system) absorbs 115 J of heat. As it expands, it does 88 kJ of…

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Q: If a system has 475 kcal of work done to it, and releases 5.00 x 102 kJ of heat into its…

A:

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g °C) that…

A: For the first question simply it follows the  q= ms∆t equation.   For the second one it is the case…

Q: A potted plant is placed under a grow lamp, which provides 6,200 J of energy that raises the…

A: The answer is given as follows

Q: Which is the least expensive source of energy in kilojoules per dollar: a box of breakfast cereal…

A: Since it is given that 1.0 ounce = 130 Calories Therefore, 32 ounces of cereal in energy = 32×130…

Q: If a system has 225 kcal of work done to it, and releases 5.00 x 10² kJ of heat into its…

A: Given, Work done on the system W=225 Kcal    {As work is done by the system , so  W is +ve} Heat…