Calculate the amount of work done, in joules, when 2.5 mole of H2O vaporizes at 1.0 atm and 25°C. Assume the volume of liquid H2O is negligible compared to that of vapor. (1 L·atm = 101.3 J)

Q: I. Calculate total work done (in Joules) when 50 g of iron is dissolved in HCl in an open beaker at…

A: Write the ideal gas equation. PV =nRT where P is the pressure, V is the volume, n is the number of…

Q: How much work, w, must be done on a system to decrease its volume from 10.0 L to 3.OL by exerting a…

A: Given, Initial volume = 10 L Final volume = 3 L Pressure = 6 atm

Q: please help me

A: Pressure, P = 1 atm Initial volume, V1 = 1 L Final volume, V2 = 10 L

Q: 226 kJ of heat increases the temperature of 47.0 kg of copper by 12.5 ℃, what is the molar heat…

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Q: If we define the system as the reactants and products, what is the sign of work in this process,…

A: According to the first law of thermodynamics, the internal energy of a system can be changed by…

Q: Calculate the specific heat capacity of the unknown metal given the mass of the metal is 225g, the…

A: Given for a sample of metal  mass of metal = 225 gm temperature rise ∆T = 13°C energy absorb Q =…

Q: A fuel is burned in a cylinder equipped with a piston. The initial volume of the cylinder is 0.250…

A: A fuel is burned in a cylinder equipped with a piston. The initial volume of the cylinder is 0.250…

Q: The amount of work to compress a gas is 80J, 30 J of heat is given off to the surroundings.…

A: Given,Work to compress a gas = 80 JHeat given off by the system = 30 JRequired,…

Q: Calculate the work done (in Joules) during the combustion of hydrazine, a component of rocket fuel,…

A: For the given reaction, work done is calculated by using the formula as shown below : Work done =…

Q: sample of gas is placed into an enclosed cylinder and fitted with a movable piston. Calculate the…

A: Work done in compression process is positive.

Q: 9. If 10 L of an ideal gas at a pressure of 2 atm is cooled so that it contracts 1 at constant…

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Q: Imagine some helium in a cylinder with an initial volume of 1 liter and an initial pressure of 1…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: If 240 kJ of heat is required at constant pressure to decompose 2.0 mol of a substances to form its…

A: Standard Enthalpy of formation(∆Hfº): The standard enthalpy of formation is defined as the energy…

Q: How much work (in J) is involved in a chemical reaction if the volume decreases from 4.00 to 1.26 L…

A: Given:Volume V1 = 4.00 LVolume V2= 1.26 Lpressure = 0.857 atm

Q: A sample of hydrogen gas is kept in a container with a piston. Recall that 1 L atm = 101.3 J. If the…

A: Given data :  Volume (V1) = 1.0 L  Volume ( V2) = 4.5 L  To calculate : work done Against a vacuum…

Q: Calculate the work in joules when a piston moves from a volume of 50.00 mL to a  volume of 450.00 mL…

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Q: How much work, w, must be done on a system to decrease its volume from 20.0 L to 13.0 L by exerting…

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

Q: How much work is needed in a system to expand from 25 to 50 liters against a pressure of 5 atm? Is…

A: When a gas expand at constant pressurewith a small change in volume dv workdone dw = p× dvIf initial…

Q: During a breath, the average human lung expands about 0.50L. If this expansion occcurs against an…

A: Work in thermodynamics is the amount of energy that is transferred from one system to another system…

Q: At constant pressure a piston expanded, doing 250 J of work and absorbing 500 J of heat. What is the…

A:

Q: Assume that O2(g) behaves like an ideal gas. A sample of oxygen gas with mass equal to 16 g occupies…

A: (i)  Moles of O2 = Weight (g)Molar mass (g/mol)       = 16 g32 g/mol = 0.5 molesP = 3.0 atm…

Q: A gas absorbs 20.0 J of heat and then performs 13.1 J of work. Calculate the change in internal…

A: Given: Gas absorbed energy = 20.0 J And gas performs work = 13.1 J

Q: The first step in the preparation of lead from its ore (galena, PbS) consists of roasting the ore.…

A: Dear student , As you have not given the standard enthalpy values for the reaction. So we have taken…

Q: N2(8) + 3H2(g) – 2NH3(g) AHn = -92.6 kJ/mol rxn If 2.0 moles of N, react with 6.0 moles of H, to…

A: The reaction given is  N2(g)+3H2(g)-------------> 2NH3(g) Ammonia can also be synthesized by the…

Q: Metal A has a heat capacity of 0.450 J/g°C while metal B has a heat capacity of 1.250 J/g°C. If both…

A: Specific Heat capacity Cs, For Metal A : Cs = 0.450 J/g°C For Metal B : Cs = 1.250 J/g°C Energy…

Q: A certain gas expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work…

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Q: A system absorbs 21.6 kJ of heat while performing 6.9 kj of work on the surroundings. If the initial…

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Q: Calculate the work done (in Joules) during the decomposition of dinitrogen tetroxide in which the…

A:

Q: The average human lung expands by about 0.50 L during each breath. If this expansion occurs against…

A: In the case of expansion, the system loses energy to the surroundings so work done by the system is…

Q: Provide the definition of the second law of thermodynamics. How does the second law explain why heat…

A:

Q: Calculate the work done in joules when 0.500 g of solid sodium reacts with water to form hydrogen…

A: Given reaction; 2Na(s) + 2H2O(l) ⟶ 2NaOH(aq) + H2(g) Weight of Na metal = 0.500 g Moles of Na metal…

Q: A 1.00 g sample of Ne (g) at 1.00 atm pressure and 27 oC is allowed to expand into an evacuated…

A: Solution- on the all above process work done will be zero.  Because the expansion of an ideal gas in…

Q: Calculate total work done (in Joules) when 50 g of iron is dissolved in HCl in an open beaker at…

A:

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: Consider the reaction N2(g) + 3H2(g) → 2NH3(g) ΔHorxn = −92.6 kJ/mol  If 2.0 moles of N2 react with…

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

Q: Calculate the work, w, done in kJ when a gas contracts from 40.0 L to 5.0 L against a constant…

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Q: A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 75 J…

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Q: A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial…

A: According to 1st law of thermodynamics:-∆u=q+wwhere,∆u= cange in internal energyq= heat given to the…

Q: A chemical reaction takes place in an open flask. The reaction releases 355 kJ of heat and does 25…

A: According to the first law of thermodynamics the internal energy of a system can be mathematically…

Q: Calculate the work, w, done in kJ when a gas contracts from 55 L to 25 L against a constant external…

A: We have to calculate the work done.

Q: C2H4 (g) + 3 02 (g)2 CO2 (g) + 2 H20 (e) Standard enthalpies of formation of CO2 (g) and H20 (e) are…

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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: How much work in L*atm is done by 1.44 moles of a gas that has an initial volume of 22.5 liters and…

A: Initial Volume of gas = 22.5 L Calculation of final volume of gas: where P is the final pressure, V…

Q: How much work, w, must be done on a system to decrease its volume from 18.0 L to 11.0 L by exerting…

A:

Q: A substance receives 1 kJ of pressure-volume work and produces 2 kJ of heat at constant pressure.…

A: Given, a substance receives ---- 1kJ of pressure-volume work. Heat produced by the substance at…

Q: 2)  Automobiles air bags are filled via the decomposition of sodium azide, according to the…

A: The decomposition reaction of sodium azide is shown below:

Q: How much work is done if 240 L of argon gas irreversibly double in volume against 1 bar of pressure?…

A: The initial volume of argon gas (V1) = 240 L The final volume of argon gas (V2) = 2×240…

Q: Calculate the work, w, gained or lost by the system when a gas expands from 15 L to 35 L against a…

A: Given : Initial volume = 15 L  Final volume = 35 L And constant external pressure = 1.5 atm.

Q: Calculate the work done in joules in the following process: Expanding 21.9 L of oxygen gas at an…

A:

Q: How much work (in J) is required to expand the volume of a pump from 0.0 L to 2.5 L against an…

A: Work done is given by W=-Pext(V2-V1) Pext is the external pressure and V2 is the final volume and V1…