The reaction between hydrogen and oxygen to yield water vapor has ΔH∘=−484kJ:2H2(g)+O2(g)→2H2O(g)ΔH∘=−484kJHow much PV work is done in kilojoules for the reaction of 0.28 mol of H2 with 0.14 mol of O2 at atmospheric pressure if the volume change is -7.7 L?What is the value of ΔE in kilojoules?

Q: The thermite reaction, used for welding iron, is the reaction of Fe3O4 with Al. 8 Al (s) + 3 Fe3O4…

A: The question is based on the concept of reaction stoichiometry. First, we determine the limiting…

Q: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

A: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

Q: 5.2 b Calculate the magnitude of q for a system that does 7.05 × 105 kJ of work on its surroundings…

A: From given data W = -7.05×105 kJ ∆U = -9.55×103 kJ W is negative because work is done by system on…

Q: Consider the reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l), ΔH = –1.37 × 103 kJ When a 2.23 mol…

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Q: Consider the following reaction: 2Mg(s) + 02(g) → 2M90 AH = -1204kJ How many kilojoules of heat are…

A: 1- First we will calculate the  moles of MgO(s)  moles = [ mass / molar mass ]  moles = [ 7.50g /…

Q: Calculate the value of ΔE for a system that loses 50 J of heat and has 150 J of work performed on it…

A: Given: The system loses 50 J of heat. And the work done on the system = 150 J.

Q: An ideal gas with a volume of 0.1m' expands at a constant pressure of 1.5 x 10ʻPa to tripe its…

A: Given : Constant Pressure = 1.5 X 105 Pa Initial volume = 0.1 m3  And final volume = triple of…

Q: A cylinder contains a gas under constant atmospheric pressure. When 0.384 kJ of heat is added to the…

A: Given that : The amount of heat added to the gas (q) = 0.384 kJ Work done (W) = 553 J

Q: When a 4.50-g sample of liquid octane (C8H18) burns in a bomb calorimeter, the temperature of the…

A: Mass of octane = 4.50 g  Temperature change = 27.5 ∘C Heat capacity of calorimeter = 6.27 kJ/∘C

Q: 2. Calculate the molar heat capacity of rhodium, in J/mol.°C, given a specific heat of 0.244…

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Q: A sample of sucrose, C12H22O11 weighing 0.1328 g, was burned to completion in a bomb calorimeter at…

A: Given: sucrose sample weight   =   0.1328 g,  Temperature                      = 25°C,…

Q: The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is…

A: since, p is constant, q = delta H

Q: The combustion reaction of nitromethane fuel occurs as follows: → 2 CO2(g) + 3 H20(1) + N2(g) 2…

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Q: When gasoline burns in an automobile engine, the heat released (325 J) causes the products CO2 and…

A: It is given that 325 J of heat is released when gasoline is burned, and the work done by the gases…

Q: When gasoline burns in an automobile engine, the heat released (325 J) causes the products CO2 and…

A: Given:   The heat released is 325 J. The work done by gas during expansion is 451 J.

Q: The AH° of the reaction is -1367 kJ. Calculate the work done on the system at 25°C. C2H5OH(1) +…

A: Work done (w) : w = -∆ngRT  w = - ( 2 - 3) x 8.314 x 298  w = 2477.572 J w = 2.48 kJ

Q: 2. Calculate the pV work done (in Joules) when a gas expands from 3 L to 8 L against a constant…

A: Given : Initial volume of gas = 3 L  Final volume of gas = 8 L And constant external pressure = 5…

Q: A 0.672-g sample of glucose, C6H12O6 (180.2 g.mol-1), was burned in a constant-volume calorimeter.…

A: Constant volume calorimeter is carried out in a bomb calorimeter, a device commonly used to…

Q: A cylinder contains a gas under constant atmospheric pressure. When 0.434 kJ of heat is added to the…

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Q: A certain closed system absorbs 150 J of heat and does 210 J of work. Which of the following about…

A: Given: Work done by the system = 210 J And heat absorbed by the system = 150 J

Q: The contents of the closed box in each of the following illustrationsrepresent a system, and the…

A: The points should be kept in mind while solving this problem, Heat absorbed by the system is called…

Q: ch.6.2. calculate the internal energy change for a. one hundred(100.) joules of work is required…

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Q: What is the change in internal energy for a reaction producing 65.0 joules of heat by doing 38.0…

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Q: Suppose we have a closed, un-isolated system. When 483 J of heat was introduced to the system, it…

A: According to the first law of thermodynamics ; change in internal energy is given by the sum of heat…

Q: In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by…

A:

Q: The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: At 850°C, CaCO3 undergoes substantial decomposition to yield CaO and CO2. Assuming that the ∆H°f…

A: Standard enthalpy of formation of CaCO3 (s) = -1207 KJ/mol Standard enthalpy of formation of CaO (s)…

Q: Octane 1C8H182 is a liquid hydrocarbon at room temperature that is a constituent of gasoline.…

A: We have the equation ∆G°=∆H°-T∆S° Where ∆H° is change in enthalpy, ∆G° is change in free energy, T…

Q: 7. a) Natural gas when allowed to expand from a volume of 5.2 L to a volume of 9.5 L. While the…

A: i) The work has been done if the gas expands freely without any external hindrance with proper…

Q: The value of ΔE for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of…

A:

Q: Consider the following reaction: 2 Mg + O2  2 MgO,  Hrxn = -1,203 kJ.Calculate the amount of heat…

A: The enthalpy change or heat released/absorbed during a chemical reaction as represented by a…

Q: At 850°C, CaCO3 undergoes substantial decomposition to yield CaO and CO2 Assuming that the ΔH°f…

A: The balanced chemical equation is given below, CaCO3(s)→CaO(s)+CO2(g) To calculate  ΔH°f values. Add…

Q: A steel cylinder of 10 liters capacity contains 20 moles of oxygen at 27°C. An imperfection in the…

A: The work done by gas can be calculated by using formula of work done i.e W= -P(Vf- Vi)  Where w…

Q: When a gas undergoes a particular chemical reaction at 25.0 °C, it releases 824 J of heat from it…

A:

Q: 1 mole of an ideal gas is at 6 atm pressure, occupies 3 L and has an internal energy of 2735.1 J.…

A: Here the system undergoes two different paths.  Path-1 is constant volume process Path-2 is constant…

Q: When 1 mol of a fuel is burned at constant pressure, it produces 3455 kJ of heat and does 12 kJ of…

A: Delta E = q + w  where Delta E = change in internal energy  q = heat , w = workdone

Q: Natural gas burns in air to form carbon dioxide and water, releasing heat. CH4(g) + O2(g) → CO2(g)…

A: Given : Mass ( m ) = 23 gram Temperature (∆T) = 32°C   Find mass of CH4 = ??

Q: The reaction between hydrogen and oxygen to yield water vapor has ΔH° = -484 kJ. How much PV work is…

A: Given data,∆H=-484kJMoles of H2=0.50molMoles of O2=0.25mol∆V=-5.6LPressure=1atm

Q: 11. The value of AE for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of…

A: According to first law of thermodynamics, energy can neither be created nor be destroyed. It can…

Q: 18. The combustion of propane is shown by the following equation: C,H;(g) + 50,(g) → 3CO,(g) +…

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Q: Calculate the mass of glucose metabolized by a 58.0 kg person

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Q: The thermite reaction, in which powdered aluminum reacts with iron oxide, is highly exothermic.…

A: Given, The thermite reaction is : 2 Al (s) + Fe2O3 (s) → Al2O3 (s) + 2 Fe (s)   The standard…

Q: Calculate the work done in joules by the reaction 2Na(s) + 2H2O(l) = 2NaOH(aq) + H2(g) when 0.34 g…

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Q: A heat engine operates between a hot source at 130.°C and a cold sink at 10.°C. How much work can be…

A: For carnot cycle, efficient is related to temperatures of hot source and cold sink

Q: the formation of table salt from chlorine gas and sodium metal is highly exothermic 2Na + Cl2=NaCl…

A: Answer:- This question is answered by using the simple concept of the thermochemical reaction which…

Q: work

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Q: If a system has 5.00×102 kcal5.00×102 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ…

A: Given Data : Work done (w) = 5.00 × 102 kcal heat (q) = 5.00 × 102 kJ

Q: 3. How much heat, in kilojoules, is evolved in the complete consumption of 10.00 grams of methane,…

A: Introduction :  The reaction between methane and chlorine is a type of substitution reaction.Methane…

Q: III WICI a process occurs at constant external pressure. a) What is the sign of w for the system? Is…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Calculate ΔE for a system that absorbs 506.0  kJ of heat from its surroundings and does 379.0  kJ of…

A: It is a given that a system absorbs 506 kJ of heat and the system does 379 kJ of work on the…