Assume that a particular reaction evolves 229 kJ of heat and that 27 kJ of PV work is gained by the system. What is the value of ΔE for the system? What is the value of ΔH for the system? What is the value of ΔE for the surroundings?

Q: How much work, w, must be done on a system to decrease its volume from 13.0 L to 4.0 L by exerting a…

A: Here we have to calculate the work done when the volume of a gas decrease from 13L to 4L by applying…

Q: What is the ΔE in units joules for a system releasing 428 calories of heat its surroundings and has…

A: a system releasing 428 calories of heat its surroundings and has 1255 J of work done on the system

Q: Why do elements always have ΔH∘f=0? a) The standard state of elements is the reference point for…

A: •Given:- Here is question is asking that why ∆H°f always zero for elements.

Q: The volume of a gas changes from 44L to 26L at a constant pressure of 1.2 atm. Calculate the work…

A: The objective of the question is to calculate the work associated with the given process. Given ,…

Q: For which of the following processes is work done by the system?   a Br2(g) → 2 Br(g) b H2O(g) →…

A: The work done in the case of chemical reactions is given by the equation:  W=-∆ngRT Where, ∆ng=No of…

Q: Calculate ΔE for a system that absorbs 512.0  kJ of heat from its surroundings and does 295.0  kJ of…

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Q: A 72.0 mL sample of 1.00 M NAOH is mixed with 59.0 mL of 1.00 M H,SO, in a large Styrofoam coffee…

A: The given thermochemical equation is: H2SO4(aq) + 2NaOH(aq)  ----> Na2SO4(aq) + 2H2O(l) ; ∆Hrxn =…

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: Can you use an approach similar to Hess’s law to calculatethe change in internal energy, ΔE, for an…

A: The question asks us can we use the Hess law to claculate the change in  internal energy for the…

Q: Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is…

A: Heat given Q = 25.0 kJ  Initial volume Vi = 12.00 L  Final volume Vf = 6.00 L Constant pressure P =…

Q: When 11.9 g of barium bromide (BaBr2) is dissolved in 107 g of water in a styrofoam calorimeter of…

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Q: Combining 0.329 mol Fe2O3 with excess carbon produced 18.9 g Fe Fe2O3+3C⟶2Fe+3CO What is the actual…

A: Given:0.329 mol Fe2O318.9 g FeThe chemical equation involved:Fe2O3+3C⟶2Fe+3CO

Q: Calculate ΔSsurr at the indicated temperature for a reaction having each of the following changes in…

A: Calculate the ΔSsurr at the indicated temperature for a reaction having each of the following…

Q: Use the data below and Hess’ law to calculate the ΔrHo for the overall reaction: C2H4(g) + 6F2(g) →…

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Q: 50.0 mL of 1.00 M HCl(aq) and 100.0 mL of 1.00 M NaOH(aq), both at 25.0oC, are added together in a…

A: Total volume of the solution, (V) = (50 + 100) mL = 150 mL. The density of the solution, d = 1 g/mL.…

Q: for a reaction that does work and releases heat under constant pressure which will have the larger…

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Q: Find ΔcH for the combustion of a new type of fuel (M = 46.07 g mol-1) from the following data:The…

A: The objective of the question is to calculate the enthalpy change (ΔcH) for the combustion of a new…

Q: The combustion of 2.295 g of propanol (C3H7OH) increases the temperature of a bomb calorimeter from…

A: Heat of Combustion- Is the measure of the amount of heat released when one mole of a substance is…

Q: Calculate the work done when a gas expands from a volume of 10.00 L to a volume of 25.00 L against a…

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Q: A system releases 925 J of energy to the surroundings as heat while 211 J of work was done on the…

A: Consider the given information is as follows; Q (heat releases to the surrounding) = -925 J…

Q: Calculate ΔE for the combustion of a gas that releases 471.8 kJ of heat to its surroundings and does…

A: Given: Heat = 471.8 kJ Work = 97.2 kJ

Q: How much work, w, must be done on a system to decrease its volume from 17.0 L to 8.0 L by exerting a…

A: Work done = -P x Change in volume

Q: A system does 506 kJ of work and loses 271 kJ of heat to the surroundings. What is the change in…

A: Please find your solution below : According to First Law of Thermodynamics, heat can neither we…

Q: A system does 551 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

A: Given Data : 1. Work done (W) = -551KJ 2. Heat to the surroundings (Q) = -216 KJ Work done by the…

Q: What is the sign of work when a sample of a gas increases its volume? Explain why work has that…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: Calculate ΔE for the combustion of a gas that releases 471.8 kJ of heat to its surroundings and does…

A: We are here given the combustion of gas as the system  Heat released by the system =-471.8 kJ…

Q: Acetic acid (CH3CO2H), whose aqueous solutions are known as vinegar, is prepared by reaction of…

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Q: When 0.5 mol of H2H2 is reacted with 0.5 mol of O2O2, 121 kJ of heat is released. Determine…

A: In the question, it is given that 0.5 mol of H2 react with 0.5mol of O2  i.e same ratio therefore…

Q: The gas-phase reaction between nitrogen and oxygen was carried out in a device designed to maintain…

A: The balanced chemical equation for the reaction of nitrogen and oxygen is N2g+O2g→2NOgor we can…

Q: Use standard enthalpies of formation to calculate ΔH° for the following reaction: SnO2 (s)   +   2…

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